Lost my weapon switch icon, want it back

Tried a search on this but no luck.

I somehow made my f2 secondary weapon set icon disappear and only the f1 icon appears on my screen. How can I get the f2 icon back?

Thanks.

On your inventory screen, there should be a button for weapon sets. Click on that and make sure there is a check in the weapon set 2 box.

there is a button on your inventory screen that says weapon slot or something like that. you can click it to make another one.