The recently introduced session save/restore feature is a great addition and works nicely. There just are few session properties which the initial implementation does not cover yet. Some of them may be debatable. Show/hide decoder trace (the "eye" symbol in decoder dialogs) Sample rate and samples count (are device properties worth saving?).
I don't think device properties belong into a PVS file because they're a property of the data that is loaded.
Fixed in 722c76245c024d06812d132eb355e738b2436bff by also saving/restoring the decoding visibility, thanks!