One thing to be aware of, when you do select your macro in the E-Mem section of the MACRO menu the default is ON so that your first keyframe will trigger your macro. That is great IF you want the macro to trigger on the first KF, if not, turn the enable OFF until the correct KF.

All that you have to do is build a timeline on that MISC level to fire the macros where you would want them. Go into the Macro menu, touch the macro assign button...this will bring up a list of your macros...Choose the one that you want - it'll show up in the macro assign box. Then just insert this on that MISC level's timeline. Just remember to select NONE as the macro trigger on those keyframes of the level where you DON't want a macro to fire. If you attach something like macro 1 & insert a keyframe, then keep inserting keyframes the macro will fire again on each keyframe. It doesn't default to NONE after you've done the operation once.