Be able to group routines by room.
Because routines are a way to control multiple things at once, they are used pretty frequently. When too many routines are created, the list gets disorganized and a little chaotic. Why not have the ability to group your routines by the rooms they control?
Gary Foord commented
Grouping routines by room should be stanadrd feature. The additional ability to sub-group routines by a custom group name within a given room would also be very useful.