Open a session by double-clicking it in the Sessions library (or right-click → Analyze Session). Since 1.5.3 you can also double-click a session file in Finder on a Mac — see Importing Sessions. It appears as a row under Session analysis in the sidebar and stays open until you close it.

While the file is being read, the pane shows how far along it is rather than an unmarked spinner.

Tabs and windows

Several sessions together

Added in 1.7.5. Select two or more sessions in the Sessions library, right-click, and choose Analyze N Sessions Together…. A sheet lists them, says what AimMac makes of them, and offers two ways to open them:

In a comparison the quickest lap of all is highlighted brightest and each other session's best more quietly. Click a session's heading in the Laps list to rename it. Laps can't be renamed or removed there — do that in the session itself.

Either way this is a view: nothing is added to your library and the sessions themselves are untouched. It stays open like any other tab and goes when you close it.

Saved analyses

Added in 1.5.3. A tab remembers how you left it, but only until you close it. A saved analysis keeps it for good: the panes, the compared laps and their colors, the split division, the reference laps, the video.