Thinking about the last updates I've worked on, I can delive a new feature to the builder: I'd call it "Wave Lockdown". Basically you would be able to choose to use ships, squadrons and upgrades only from certain Waves, chosen by simple checkboxes at the start of the builder. Maybe new players can choose only from Starter Set and Wave 1 content, while more creative players can start already to build lists using all waves stuff, including Wave 3 (hopefully we will have more info about the new ships, since for now the new Fleet Support upgrades can't be equipped to anything yet).
Does it soud cool to you? I could start working on this and deliver it quite quickly if you guys may find this useful.
By wave that might be of limited use (can't see me using it much, but can see how it would be good for folk in other situations). However perhaps something more like the opportunity to choose a list that only uses the ships/cards that you own (by setting some quantity fields for each expansion somewhere) is along the same lines but has more use than simply playing specific waves?
Yeah that is the more detailed version, but instead of waves there should be a check for each expansion (SWM01... SWM19). Definitely doable, but it would require more work.