How to add Record # as a Column in Alteryx?

Hi, 

I have a table for example:

I want to add a new column to include the record # as RecordID. I tried with generate row tool. But it replicating with respect to the row and condition expression. I also can not delete condition expression. The result from generate row tool with RowCount <= 2 condition expression:

Or I do not know how to use it may be.