I have written code that results in a range of cells being selected in one
column. (Each time the code is run, it selects a different range of varying
sizes, depending on what it is searching for). Once the range is selected,
I would then like to offset that selection by 3 columns and select the same
size range in that other column, plus the same size range in the column
immediately to the right of that one.

For example, let's say my code ends up selecting the range A10:A20. I then
want my code to offset that selection to D10:E20. Does that make sense?
Thanks for your help!