Pin / Unpin a stack
Go to pinned stack
cmd P then↑ / ↓ to select a stack then enter
Go to pinned Stack (alt)
cmd P then 2 where 2 is the number of the pinned stack
Move to pinned stack
Hit cmd P (mac) or ctrl P (windows) to focus the pinned stack section. Then hit the corresponding number.
Alternatively, after focusing the pinned stack section, use ↑ / ↓ to select the stack you'd like to open. The press enter to open it.
To open a pinned stack, click on the pinned stack in your left sidebar.
Hit M on selected stacks or bytes to focus the pinned stack section, and use any of the above methods to select which stack you want to move to.