Trouble with Calendar App Group Data

edited 12/09/19 in Smartsheet Basics


I am having trouble with the Group Data By function and using the Custom Category List Order. Some columns that I sort by allow me to choose custom colors while others do not.

Is there a reason why some columns allow sorting by color and others do not?

How can I identify which columns will allow sorting by color? 

Examples are from the same calendar but the Group Data By is different 

Group Data.JPG

Group Data2.JPG