Recently I found that there is a way to create my own shortcuts in PS. Simply go to Edit and then Keyboard Shortcuts. The good thing is that if the combination I chose is already taken, it allows me to edit both. I used it to create shortcuts for the functions I use the most, like "copy layer style", "paste layer style" and "create layer". You can read more info here: https://helpx.adobe.com/photoshop/using/customizing-keyboard-shortcuts.html I hope you'll find it useful. PS has so many functions and I feel like I have explored only a small fraction of them.
YES! I love that you can not only customize your shortcuts- but also your workspace! Have you tried the color tags for menu items? That's one of my most favorite things to customize! I'll PM you
Basically in the keyboard shortcuts menu- you can choose the visibility & color of menu bar items. I change colors of things I use often (like filters, etc) so they stand out when you open that menu bar. Make sense? Also I turn off the visibility of all the bridge options since I don't use bridge. Just makes a few less options in the menus = cleaner/easier.
I changed F2 to run my save action. It saves a printable jpeg, and then saves for web. It's awesome to be able to just press a button to run an action! I love customizing keyboard shortcuts.