There are a number of tools that lose their selections when copied and pasted. Here are the ones I quickly found so far:
-Multi Row Formula (Group By)
-Running Total (Group By)
-Transpose (Key Fields and Data Fields)
-Unique (Unique Fields)
-Concatenate (Group Data by these values and method for aggregating values)
It would be really great if they could keep their selections when pasted. This would be similar to the Join, Multi Field Formulas, or Sort tools which keep their settings but let you know if a field is missing. Thanks!