B612 Download Shortcut
Joel Scancarello
When you're done with your selection outline and no longer need it, you can remove it by going up to the Select menu at the top of the screen and choosing Deselect, or you can press the keyboard shortcut Ctrl+D (Win) / Command+D (Mac). Or, for the fastest way to remove a selection, simply click anywhere inside of the document with the Magnetic Lasso Tool or with any of Photoshop's other selection tools.
I've also setup the macros \e (for ε), \1 and \0 inside the tikzcd environment so that they act as shortcuts for \arrow[r, "\varepisolon"] and so on (since the majority of your arrows seem to go to the cell to the right). The optional argument can be used to specify a different target as well as all other options that the \arrow macro accepts.