Think it would be nice to have +1 research slot queue.

Where if you have enough resources on planet at the time of the first research completing it will start the next research.

Yes this means you would have to leave the resources on the planet for this to work, otherwise it would work as normal. 

I think this has the benefit of allowing someone to optimize research time

It also has the risk of being raided for the resources if you are being lazy

But You need to add something, Like after building nano lab, +1 research slot, LVL 3 =  +2 etc
Anyway it is a good idea

I don't mean actually doing 2 researches at a time


Research 1 is going ----> you "queue" up the next in the sense that after research 1 finishes, this one will start assuming you have the resources on planet to start it

Like the shipyard?

would be of no benefit