Hello there,
Throughout the years, I've found myself continuously Ctrl+Dragging to select the topmost row of active keys on the Dopesheet. Honestly, if I had one dollar for every time I...:
1.- Made sure the Dopesheet was scrolled up all the way,
2.- Directed the cursor over Frame 0 keys,
3.- Pressed and hold Control key,
4.- Dragged until the last frame and released...
...I'd be rich by now. :p
So, what about adding a 'Select All' (topmost keys) keyboard shortcut...?
I've taken a look at the Cheat Sheet and Ctrl+A is not used, which incidentally is the standard key combo that most programs use for this purpose.
Not saying I'll save years of my life if you add this, but it would still make me happy (and possibly others).
Thanks for reading.