@ TapiocaTundra Yes ~ Lock & Hide
An alternative is to save sections of the model as is, or, export each section as an individual object and save them in a new folder as individual files.
Delete the parts you do not need, carry on modeling until the next section is finished. save the iteration. Delete the section just modelled, export the previous section as the next object.
Reload the newest version, delete the previous section, save/copy the new section by itself and then proceed to model the next section and, so on. A lot of faffing about but it does keep the UI reasonably alive and stutter free. You only need to do this with the first two sections of course, after that you simply keep adding the new bits save all and just delete the previous part as you already have it saved as a separate object. Then for safety, copy the newest section and on the copy start adding the next section. Etc.
Then in the end you can attempt to either import back into Hex’ each section one by one until you have the whole model back together and then save as is and/or export it as an .obj or Hexagon gives way under the strain. If the latter then reassemble it in your rendering program of choice.
Or, reassemble it in your photo editing program if it is too big for your rendering program as well. Hmm, I almost sound like I know what I’m talking about LOL. There is nearly always some way of working round a problem and it would be a pity now if Patience didn’t finish her ship.