Flyout Panels
After a project is opened, triangular icons for flyouts panels appear to the right of the Activity Bar. Click a triangle to open the corresponding flyout panel. A second click causes the panel to close.
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File Explorer, displaying flyout icons to right of Activity Bar
Additional information:
CoCalc feature announcement and discussion: ANN: Flyout Panels for Projects.
CoCalc News article introducing flyouts: Flyout Panels for Projects.
CoCalc News article with updates: Update on Flyouts.
Below are screenshots illustrating each flyout panel:
Explorer
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Explorer flyout panel
New File
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New File flyout panel (partial view)
Project Log
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Project Log flyout panel
Find Files
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Find Files flyout panel
Processes
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Processes flyout panel
Settings
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Settings flyout panel