textbox/combobox to first empty row

[JustinN1]

I have a userform that has several textboxes and comboboxes. I need these unloaded to sheet1 starting at row 16 IF the row is blank. Some cells are merged and I wasnt sure if that mattered but I listed what goes where below.

Textbox2 to A16
Combobox1 to B16
Textbox4 to E16
Label5 to H16
Textbox1 to T16
Textbox5 to W16

I also have an Optionbutton1 and Optionbutton2 on the userform. One is for Over and one is for Under. When Optionbutton1 is selected I would like "Over" to be placed in P16 and if Optionbutton2 is selected I would like "Under" to be placed instead.

Thanks!

 

[JustinN1]

Forgot to say that I have a command button on the userform that I want to use to unload all the info.