The Window

Divooka Explore has no menu bar. Everything is on a toolbar, in two panels beside the canvas, in a dock that opens under it when there is something to read, or one key away. Hover over any button to see its name and its key.

The start screen

The start screen is where Divooka Explore opens. Its rail on the left reads Start, Examples, Node library, Settings and Quit; the body offers three ways to begin:

New document - create a document; see Your first program.
Open… - open a .dvk document from disk (Ctrl+O).
Start without document - go to the editor with nothing open.

Under them, Recent lists the documents you opened, newest first; right-click one for Open containing folder or Remove from Recent. Start from an example shows four of the shipped examples: Shuffle draws four others, and Browse all opens the whole collection - see Examples.

With a document open, Ctrl+H or the house at the toolbar's left end brings the start screen back over it, and Esc (or Ctrl+H again) returns to the document.

The editor

The editor: the document outline on the left, the canvas in the middle with the breadcrumb above it, the Properties panel on the right, and the status bar along the bottom

Region	Where	What it is for
Title bar	Across the top	The document's name and folder in the middle; Appearance and settings (the sliders) and About and help (the question mark) on the right, beside the window buttons.
Toolbar	Under the title bar	From the left: the start screen, Undo and Redo, Run, Save and Save as, Tidy layout, the drawing pen and the other annotations, the Asset library and the Node library. On the right: the Search nodes box, the grid, origin axes and minimap toggles, Fit the graph, Snapshot and the zoom.
Document outline	Left	The document, its own graph - Document - and every graph in it, the one a run starts marked entry. Click a graph to show it; right-click for Rename…, Set as entry and Delete…; Add graph… adds one.
Navigation bar	Above the canvas	Where you are - the document, then the graph - with the graph's kind, and on the right its nodes and wires; on a Flows graph, also how many nodes are active and how many a run will touch.
Canvas	Middle	The graph itself. The minimap sits in its bottom-right corner.
Properties panel	Right	What is selected - see below.
Console dock	Under the canvas	Shut until there is something to read - see below.
Status bar	Along the bottom	What just happened, the console's line count, and the two switches that hide the side panels.

Only one document is open at a time. Opening another closes it, and asks first when it has unsaved changes.

The toolbar, the navigation bar and the status bar can each be hidden from Appearance and settings, under Interface. F12 hides every bar and both side panels at once, leaving the title bar and the canvas, and shows them all again.

Moving around the canvas

To do this	Do this
Pan	Drag with the middle mouse button; hold `Alt`, or `Space` with nothing selected, and drag; drag with the right mouse button from an empty spot; or move two fingers on a touchpad
Zoom	Turn the mouse wheel over the canvas, or pinch on a touchpad
See the whole graph	Fit the graph on the toolbar, or `Ctrl+Shift+F`
Jump somewhere far	Click or drag on the minimap

Appearance and settings ▸ Mouse wheel set to Pan makes the wheel move the view instead, Shift with it sideways and Ctrl with it zooming - for a touchpad whose two fingers would otherwise zoom.

Back and Forward

The mouse's back and forward buttons, and Alt+Left and Alt+Right, step back and forward through the places you have jumped between: another graph, a search result, a reference you followed, a paused run bringing its node into view. Each step comes back to the graph as you left it, where the view stood and with what was selected. Panning, zooming and selecting are not jumps.

The side panels

F3 hides and shows the outline, and F4 the Properties panel; the two switches at the status bar's right end do the same, and F12 hides them with every bar. Drag the edge between a panel and the canvas to resize it, and double-click that edge for the panel's own width again. All of it is remembered.

Finding nodes

The toolbox tray

The tray is how nodes are placed. Press Ctrl+Space, double-click an empty spot of the canvas, or click the Search nodes box on the toolbar, and type part of a node's name. The results are grouped by toolbox and category, best match first, and the right half describes the highlighted node: what it does, what it takes and what it returns.

The toolbox tray, opened from a Number's wire and searching for Add: the nodes that can take a number, grouped by toolbox and category, and the highlighted one described on the right

Key	In the tray
`↑` `↓`	Move the highlight; the text stays in the box
`Enter`	Place the highlighted node; opened from a wire, connect it too
`Tab`	Jump to the next toolbox
`Esc`	Close the tray

With nothing typed, the tray offers the nodes you placed recently. Hover over the search box for its grammar: Add double:0 double:1 finds the nodes called Add whose first two inputs are numbers, and ->string the nodes that return text.

The tray also opens when you drag a wire from a pin and let go on an empty spot. A chip above the results then says what the wire carries - Filter for Number - and the tray offers only nodes that can take it, and wires the one you place. Click the chip, or press Backspace in the empty box, to search everything again. See Nodes, pins and wires.

The node library

The node library is for browsing rather than searching: every toolbox, the nodes in each grouped by category, and the selected node in full. Open it with Ctrl+Shift+Space, the Node library button on the toolbar, F1 with a node selected (the library opens at that node), the Node library button in the tray's bottom-right corner (which carries over what you typed), or Node library on the start screen's rail.

The node library searching for Add: the toolboxes holding a match on the left, the matches in the middle, and the Add that adds two numbers described on the right, with its parameters and what it returns

Type to search every toolbox at once: the toolbox column narrows to the toolboxes holding a match, with how many, and pressing one narrows the list to it. ↓ and Enter add the highlighted node at the centre of the view, and Add to graph does the same. Drag the strip between the list and the description to make room for a long signature.

The Properties panel

The panel on the right has four faces - Properties, History, Run and Debug - chosen by the four buttons beside its title, which names the face showing. A run turns it to Run, and a paused run to Debug.

Properties describes what is selected. For a node: the value or wire on each input, the node's switches, and what it produced on the last run - Open in window… shows that in a window of its own, as Alt+Enter does. With nothing selected: the graph itself - its name and kind, and, where a graph has them, its inputs and outputs, data members and local variables. On the document's own graph it also holds the document's Title, Author and Description.
History is the undo history. Click a row to go back to it, or forward again.
Run describes the last run: how long it took, what it returned, and what failed.
Debug is where a paused run is read - see Debugging.

The console dock

What a run prints goes to the console dock under the canvas. It stays shut unless a run writes an error, fails, or waits for you to type something; otherwise the status bar counts the lines and shows a dot until you have read them. Open and close it with Ctrl+` or by clicking that count. Its tabs are Console, Locals, Call stack, Search and References; Running and the console and Debugging describe them.

Ctrl+F opens the dock's Search tab: it finds the document's graphs, nodes by their title, name or value, members, comments and groups, and clicking a result goes to it.

Appearance and settings

The sliders in the title bar open Appearance and settings. Every choice is remembered.

Setting	What it does
UI scale	Scales the whole interface, from 50% to 200%. `Ctrl+=` and `Ctrl+-` step through the presets from anywhere. The canvas keeps its own zoom.
Language	The language of the interface, of the node names and of the examples' names, each language listed in its own words. It changes at once.
History steps	How many steps the undo history keeps: 256, 512, 1024 or 2048.
Auto-save	How often a document with unsaved changes is saved: Off, 1 min, 5 min or 15 min. Beside it, the Copy switch - on, auto-save writes a copy to the Autosaves folder and leaves the document alone; off, it saves the document itself - and a button that opens the Autosaves folder. See Saving.
Interface	Switches for the Toolbar, the Navigation bar and the Status bar. `F12` hides or shows them all, with both side panels.
Canvas	Node previews - the pictures and values under the nodes; the Properties panel still previews the selected node. Level of detail - how much of each node is drawn: Full, Simplified (the header and title, and pins without their names or values), Title (one shape with the title across it), Bare (an empty shape with its pins), or Auto, less as you zoom out. Wires - Curved, Straight, Step or Circuit. Mouse wheel - Zoom or Pan.

Appearance and settings: UI scale, Language, History steps, Auto-save with its Copy switch, and the Interface and Canvas switches

About and help

The question mark in the title bar opens About Divooka, Privacy, License and Keyboard shortcuts, and three links: Methodox website, Methodox Wiki and Divooka Explore on Steam. Keyboard shortcuts lists every key, button and gesture - the same list as Keyboard shortcuts. F1 with nothing selected opens About Divooka directly: the version, build and system, with Copy to paste them into a bug report.