Don't glue it - because otherwise it will be even more of a job to sanitise it with washing soda and then bleach, before putting a different colony into it.
Particularly with frames in, it doesn't come apart on its own.
The lifting handholds/fingergrips are on the base part.
Don't forget to put in one of the small plastic bits (QX or blocker, you should know which I'd use) into the feeder entrance --- that's under (before adding) the eke and particularly before the frames and bees!
I have held the eke in place with tank tape while using the box as a skep, but really I ought to find it easier to climb a ladder with just the small(er) box and leave the eke at ground level.