I just developed two rolls of maco I took in two distant places, one was blank the other was perfectly aligned double exposure frame into frame. That left me with roll of photos from amsterdam on hawaii or the other way round.... I haven't done something like that in years and never ever so perfectly, frame right into frame. Camera I used canon p, and it didn't said anywhere it's capable of multiexposure.
If you want to take multiexposures with any camera you can do it the way it was done in movie cameras. After you have loaded the roll for the first time you remove the lens set the shutter to B, and with a feltpen make a mark on the film outlining the film gate. When you reload it you just have to check the sign you left is in the very same place... and presto. If you want to try post or preflashing I remember I read in some old manual from the sixties that exposure from flashing shouldn't exceed 20% of main exposure, but you should experiment with it, in those days they used it mainly for color negatives which had very steep curve, and were preety contrasty. If you do it this way I think any camera is capable of multi exposure.