Landon,
Working with ASME, AWS or other codes, the welder needs to be qualified so that the essential variables of his/her WPQR cover the applicable essential variables of the WPSs to be employed in production welds. If the welder is qualified to Weld in horizontal position, E6010 (F3) and..., he/she will be qualified to Weld epmploying different WPSs involving horizontal position, E6010 (F3, and F2 and F1 Electrodes)...
Hector