Not clear on what you want but you don't need a selector valve to plug into the SCV ports. If you are talking about using the existing loader ports with the loader off you just need connectors and hoses.
A dual selector valve is used to divert an existing function. It gets plumbed in permanent so you would be restricting what ever function you intend to divert with this valve.
A dual selector valve is used to divert an existing function. It gets plumbed in permanent so you would be restricting what ever function you intend to divert with this valve.