In case you need to pull or push the bed of Anycubic i3 Mega, do not use its height adjusting knobs. This may cause your bed to loose its adjusted position in Z axis. It happened to me once. After that event, I designed this "thing" to handle the bed in a relatively harmless point. It clicks on metal plate underneath the hot bed and stays there firmly. It needs to be a bit flexible to be placed there. First of all, insert the opposite side of the handle in the front opening of the metal plate from bottom, then pull and click the front nail onto the front edge. Well, just see the third photo for mounting it properly. Since this is a hot place, use of proper filament capable to withstand the temperatures exposed is advised. I have used PETG to print it out and it does the job pretty well so far.
Happy printing :)