Open Curves supports bookmarking the current state of the application including the UI splits and layout and the loaded data files and views (real-time sources are excluded). Open Curves supports ten seperate bookmarks, a bookmark for the last state on close and import/export of bookmarks.

To bookmark the current state, select the menu option "Bookmark -> Set -> Bookmark #" where "Bookmark #" identifies the bookmark number to use. The bookmark may then optionally be named to better distinguish it than by its number. To restore a bookmark, select "Bookmarks -> Goto -> Bookmark #". Hot keys are also available.

Bookmarks may also be exported and imported from the "Bookmarks" menu.

A bookmark stores the following information about the current application state:

The UI layout including windows sizes, visible panels and plot split views.
The visible plots and the data files from which they are loaded.
Expressions.