An alternative of Clique for those who use only Grid (Blizzard RaidUI is also supported now). Provides an easy & quick configuration frame.
Choose "Grid - Frames - Click Set“ menu to open the configration frame. It is self-explained(I only have Chinese client screen shot:).
PS: You can use
"##" in a macro, for example,
"/cast [target=##]Healing Wave" will be parsed into "/cast [target=raid1]Healing Wave”. The "raid1" is just the raid unit id of each grid button.