Apple Color 1.0 - Manual (Page 278)

278 Chapter 13 Managing Corrections and Grades
3 Rearrange the shots you want to group within the Shots browser area (this step is
optional).
Even though this step is not strictly necessary, it can be helpful visually for you to see
which shots you’re grouping together as a spatially arranged set of icons.
4 Select all the shots you want to group by Command-clicking their name bars.
5 Press G.
A group is created, and a group node appears with blue connection lines showing all
the shots that belong to that group.