Terminology & FAQ

Hold the right mouse button and drag to pan in any direction. Scroll the mouse wheel up to zoom in and down to zoom out around the pointer. You can also use the Pan tool, middle-button drag, minimap, scrollbars, and zoom buttons. Scrolling inside an editor or menu still scrolls that control.

Every flow has two mandatory anchors: S0 (Start flow) and S999 (End flow). S0 owns the flow title, type, purpose, assumptions and requirements. S999 records outcomes, expectations and takeaways. Connected nodes and their attachments belong to that flow; references do not merge flows. If removing a connection leaves a fragment, reconnect it to the start or make it a new flow before exporting. Neither anchor can be deleted individually. Delete flow asks you to confirm deletion of the whole flow; Undo restores it.

No. Adding or moving nodes, tables, labels or connectors expands the flow and canvas bounds automatically. A flow may branch, merge or loop. Templates provide starting positions, not page boundaries. The canvas has no paper boundary. Nodes snap to a fine grid; hold Alt while moving or resizing to bypass snapping. Project capacity limits remain separate: 20 flows and 250 elements, plus their start and end anchors.

Select the canvas background to show Flow settings. Enable Show page-size grid when you need a paper-size guide, then choose paper size, orientation and canvas scale. Export fits the selected flow contents plus Padding (canvas units); Export width sets the physical output width. Guides never move nodes or appear in the output. Choose Current flow, Selected flows or Whole project overview. Selected flows export as one PDF page per flow, or a separate image per flow. Overlapping neighbouring flows are excluded from individual exports.

Select a node and use Node references to choose a destination from the dropdown, or choose Pick on canvas and click a node in any flow. Nodes with references show Ref to and Ref by rows, with one icon per link. Hover an icon to see its flow and node name; click it to go there. Ref by links take you directly to the referring nodes, without navigation history. Use the Existing references dropdown to go to or remove a link. Undo restores removed links.

Delete one node at a time. When references are involved, review the incoming and outgoing references and confirm. Deletion removes the node, its connections and all associated references together; other nodes remain, and no broken references are left. Undo restores the node and its relationships together. Multi-selection is still available for movement, resizing and alignment.

Create projects from Home and use the project selector to open them in Flow. Its overview stays first. Drag the grip beside a flow in the canvas navigator to reorder it. With the grip focused, use Alt + Up/Down to reorder with the keyboard. Reordering preserves canvas positions; The horizontal and vertical arrangement buttons place flows in sequence. Automatic spacing moves neighbouring flows when content grows. Auto-reflow arranges nodes within the chosen flow, while the arrangement buttons position whole flows. These actions support Undo. Add flow extends the current project at the end or after the selected flow; repeated templates require a distinct name.

Hover over or select a node to reveal its + connection handles. Click a handle and choose a node type. Drag a handle to an existing node to connect it, or click the handle and choose Connect to an existing node. Each flow has a Flow start node. Select it to edit the flow name and type, then use its handles to add connected nodes. Connecting across flows lets you create a reference or explicitly merge the flows.

Templates start with placeholders so example values cannot be mistaken for study data. The focused library uses blank study values. Existing projects retain their entered values.

Count rules declare a parent and its downstream counts. When a rule has exactly one unknown and a consistent nonnegative solution, the editor can derive that count and update dependencies. It preserves manually entered values and flags inconsistencies. Use these sum rules only when your branches form a disjoint, complete partition with the same count unit.

Use the warning icon beside the affected node or open the checks list. Selecting an issue takes you to the affected location. Count rules live in the Logic inspector.

Nodes fit their content automatically when a dimension is unlocked. Lock width to keep a consistent column and allow height to grow; lock height to allow width to grow. With both locked, review overflow warnings and adjust the content or dimensions.

Saved flow styles remain with the project. Select a node and use Node shape in the inspector to change its shape. Use Theme in the account menu for light, dark or high-contrast application appearance.

Shift-click nodes or drag a selection area. Resize the selection with its handles, use the alignment controls, or use Auto-reflow to arrange a flow vertically or horizontally.

Open a node’s info tooltip and check Tables. Use Table shell for headings, units, row labels and footnotes, or Saved table to attach a dataset. Check Charts or Stats to attach saved outputs. The toolbar’s Show attachments menu previews selected attachment types beside the flow; exports place them in numbered appendices.

No. The current statistical templates organize assumptions, equations and externally calculated scenarios. Choosing arms, objective and outcome configures the planning scaffold; it does not validate a method or perform a statistical calculation.

A migrated table may retain its earlier review flag. Check its assumptions and results in Data or Stats, then attach an updated saved version. Attachments are snapshots and do not recalculate when a flow changes.

Yes. Use multiple Endpoint nodes and assign their roles. Record the success criteria and testing strategy explicitly; endpoint labels alone do not define a multiplicity procedure.

Use a Reference node for citations and a Statistical specification node for LaTeX. Connect them to the step they explain. These fields are intentionally absent from ordinary population nodes.

Yes. Create, edit, and download freely. Sign in when you want to save to your account. Sign-in opens in another tab. Return to your canvas and the action you started continues automatically, without a page reload. Your draft, selection, zoom, and undo history stay intact. Choosing Keep editing cancels the pending action. Your draft carries into your new or existing account without replacing earlier projects. Guest recovery is temporary and limited to the current browser tab. After sign-in, use Save to keep the entire project in your account. Export downloads a flow as PNG, JPEG, or PDF.

Use Save (or Ctrl/⌘ S) to save the complete editable canvas to your account. Use Open project to return to an account-saved project. Export offers PNG, JPEG, and PDF; editable project files and SVG downloads are currently unavailable. Guest recovery and local browser drafts are temporary, so save to your account before closing the tab.

The editor helps describe a study clearly. It does not establish scientific validity, reporting completeness or submission readiness, and does not generate completed statistical analyses. Those depend on the actual study, methods, evidence and review.