c open connect panel when a block is open or on a highlighted block
i toggle info panel
l switch between list and thumbnail view
t toggle tree view map overlay :)
v switch between All / Channels / Blocks / Index filter

arrow keys can highlight blocks while browsing channels
enter to open block, esc to close, c opens connect panel

/ opens/highlights search bar
? shows keyboard shortcuts (and markdown formatting)
+ opens new channel panel (in arena)
+ (outside of arena) browser-wide shortcut to open bookmarklet?

ctrl+shift+i inverted view (existing shortcut)