There is a pause function either on the printer or it can be inserted in the g-code, but you can’t just remove the unfinished print, fill it and and place it back expecting everything to line up perfectly. You would always get some layer shift as the sheet can be placed in a slightly different position.
But if you use gyroid infill, you should be able to drill a small hole (or rather two) and fill the model with epoxy after printing if it’s just one body… in theory. Let us know how it goes 