Ever forget troops or spells during an attack due to scrolling off screen

I think we all have done it during war :-) to one-up SC's recent arrow indicator "fix" for this problem. I think a better solution is simply have the troop icon disappear off the bottom scroll (altogether) once they have been used. They may scroll initially before you begin dropping troop but as you deplete the troop the slot disappears so another unused troop can fit in that slot. As you use the first troops and spells, the slots remaining should easily fit the screen, towards the end of the raid.. you might be down to only 2 or 3 slots left on the screen.. and when u drop your final clean up troops.. all slots are empty and you see the full war screen with no scrolling troop at the bottom.. Hope that makes sense.. long-winded description for a simple vision in my head :-)