SysModeler — User Manual
I can't edit — everything is read-only. Check your role (Viewers are read-only) and your WebSocket connection (Editors can edit only while online). The app shows a message explaining which applies. Viewers can still ask the AI.
A node won't let me move it.
It may be edit-locked (Ctrl + Shift + L to unlock, if you have edit rights), or a teammate currently holds a collaborative lock on it — wait until their color-coded outline clears.
Ctrl + Shift + H did something unexpected.
That chord is Align Middle in the v1 canvas but Hide/Show Node in v2. Confirm which editor is active — see Appendix A.6.
A hidden node disappeared from my diagram. Hide Node only conceals it on the canvas; the definition still exists in the code. Un-hide it from the Outline/element context menu or via the node's Hide/Show toggle.
I can't create a SysML v2 project. SysML v2 is available to organization accounts and is arranged via sales. If it's unavailable for your account, contact sales to enable it for your organization (see Section 5.1).
My query result won't jump to the canvas.
Make sure @id is among the query's selected properties — without it, click-to-canvas may not work. Also note that not all elements generate nodes, and an element never placed on a diagram has no position to jump to yet.
I started a commit but editing is disabled for everyone.
Expected — a commit takes a branch lock. Submit (Ctrl + Enter) or Cancel the commit to release it. Abandoned locks expire automatically after a few minutes.
My commit was rejected because the branch is locked. Someone else is committing on that branch. Wait for them to finish (or for their lock to expire), then retry.
I can't delete or rename a branch.
You cannot rename/delete main, delete the last remaining branch, or delete a branch other users are currently on. Ask collaborators to check out a different branch first.
A merge reported conflicts.
Open each conflicted file, resolve the <<<<<<< / ======= / >>>>>>> markers to the final content, and submit resolutions for all conflicted files (see Section 12.5).
The AI Agent stopped modifying my model. You may be out of credits. Check your balance under Credits & tier access. Organization accounts refill monthly; for a higher allowance, contact sales. Ordinary modeling is unaffected.
My changes didn't save.
Watch the save-status indicator. If it shows error, check your connection; the app retries automatically. Nothing is lost while it reads saving or pending.
My REST API call is unauthorized or can't write.
Confirm the key is valid and has the required scope — Read for queries/fetches, Write for modifications. Regenerate the key if it was revoked or rotated.
I didn't get my verification / reset email. Check spam, confirm the email address on your account, and use the in-app resend option.
This manual describes SysModeler.ai's user-facing capabilities. Specific menus, labels, keyboard bindings, and availability of Beta features (e.g., ReqIF export) may vary with your plan and build. The in-app Key Bindings dialog (Ctrl + H) is authoritative for shortcuts in your environment. For the latest changes, see the in-app changelog and the public Roadmap.