I believe it would be beneficial to have an Action option for Clear All Column Values. Similar to Set Column Values, but instead of having to choose each of the 30+ columns and selecting Clear Value, one can just have that action and it will clear all values in the particular row.
Use Case: I have a single line helper table with some User Specific columns and some regular columns that I use to prepare all the information for the transaction that needs to be posted. Many to 1 relationship. Once the row is added in the new table, I would like to be able to just perform a CLEAR ALL VALUES action, rather than have to manually choose Clear Values for each column.