Going Tunze for flow. What is the best way to control 3 pumps and a wave box?

[Smite]

I'm looking to go all tunze for in display flow on my up coming build. The plan is:
1) 6214 Wavebox
3) 6105 pumps

My best guess is I'll set my wave box stand alone and adjust it first. I'd like to know the most economical way to control the remaining 3 x 6105's. I've got classic apex but not sure if that helps at all? I'm pretty sure you can link 2 pumps but not sure about the 3rd.

Thanks for any input!

 

[Smite]

Nevermind, I didn't realize they made split connections for the v1/v2 - v3/v4 ports on apex.