How to insert column based on Cell Values

[vpapolu24]

I have a worksheet where I must insert a column every time the user selects 2 values (found in Pricelists sheet).

So Basically whenever a user chooses the Quote LP, or the Sell on web Values from the cell dropdown, I must insert a column adjacent to the value.

So for example if a user selects cell G5 and selects Sell on web, a column must appear between G and H. The column must read "List Price", in cell H5.

If the new list price column can have a "collapse" button in cell H5 that will cause the column to hide, that would be amazing as well.

Thank you and I apprecaite any and all the help!!