In the R-group dialog, you can change the selected R-group label.
The R-group dialog has two types depending on the context (changing the R-group label in scaffold molecules or changing the R-group definitions).
Select the Smart R-group tool, then click the R-group label you would like to change.
In the opening R-group dialog, you can set the R-group count.
The auto-numbering can be turned off, it is useful when you would like to put more than one R-group with the same label.
Select the Smart R-group tool, then click the R-group label you would like to change.
In the opening R-group dialog, you can set the count of the R-group definition.
After clicking the OK button the changes will be applied.