needing some help with Macros

We are about to get a bunch of new lights and Im working on creating some new magic sheets.  I am wanting to create a macro that adjusts the speed of an animation wheel or a gobo rotation for a +/-%.  We will have about 10 movers so the effect would need to trigger on the selected ch only.  I tried doing a macro with "select last + animation wheel speed + -%".  That only resulted in the same Ch being affected when i recorded the Macro not the active Ch i wanted.  

Has anybody done something like this to have a Macro/button that would increase a beam attribute by 5, 10 or 15% every time you hit it for the actively selected fixture.   Thanks.