I may have just figured out how to increase the Texture Pool myself.
I went to %localappdata%\Tower\Saved\Config\WindowsNoEditor and edited Engine.ini and added the following lines:
[/Script/Engine.RendererSettings]
r.Streaming.PoolSize=5120
&
i also added
r.Streaming.PoolSize=5120 to the Launch options, but i’m almost fairly certain this does nothing as the ini edit seems to have done the job.
It seems to have worked as my textures are staying loaded and the game seems to be using over the 2048 (or whatever integer it’s set to near 2GB of vRAM) amount of vRAM that is allocated. Since my card includes 8GB of vRAM, i gave myself some growing room as i’m fairly certain that i will be adding more stuff in my condo.