I have not heard of having separate valves for each return at the pump. The returns are generally done in a return loop fashion so all returns are on the same pipe. Builders though have separate valves for each drain and skimmer so you can control how much of the water is sucked at which skimmer and main drain for better circulation.
My beach entry in-floor return will be on the same loop as my other 4 returns for my pool (it's a 14,000 gallon pool approximately). The foam jet will be on its own line controlled by a 3-way jandy valve with a JVA, so I can divert some or all of the flow from the main returns to my water features (which includes a foam jet in the beach entry and two crown jets in the decking).
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