IDEA: Record ID tool should also take Starting Value from a custom expression

[seven]

The Record ID tool can take a custom starting value other than the default of 1. I sometimes have a case in which I want the starting value to begin with 1 + the max of another field. I can either do this with a macro or with Append and Formula tools. This is just one example. If I have the ability to use an expression as the Starting Value, then I can do the 1 + max or something else cool and useful.

[kmcdowell]

Thanks so much for this idea.  It absolutely gave me insight into how to handle my issue. Much appreciated!