Howdy Tarquin.

Order of the Stick reference? GREAT comic!
There's an entire forum category called "Suggestions and Ideas" you can post in. I don't recall this particular request, but it's a good one. If you can find it in there, add your vote. If not, make a post and I'll add my vote to it!
As far as the macro hot-bar, there's actually two of them, with multiple ways of assigning macros to them.
One is for actual by-name Macros, which can be found in your Settings (next to where actual by-name Macros are stored:)

This Macro Quick Bar is at the bottom of the screen, and is always active.
Alternately, you can set up Abilities from your character sheet (also commonly called Macros) as Token Actions, thusly:

An ability shown in the Macro Bar will always be visible.
An ability shown as Token Action will be visible only when the associated token is selected.
Further, you can make a by-name Macro into a Token Action as well:

And if that's not enough, as a Mentor, you can drag-and-drop any of these (or many other) buttons into the bar as desired!
Hope that helps.
-Phnord