f1-f4 for hatchery savecams
f5 for rally savecam
` for idle workers
1-4 for units
1 = lings/banelings/roaches/hydras
2 = casters
3 = air units
4 = "special" units (depends on my build/what my army comp is like, i.e. if i have vipers and infestors at the same time, vipers go on 4)
5 = all hatcheries
6 = all queens
7-0 for overlords