What do I do with a hollow butt plug?

Need some advice please, i read a lot here about hollow butt plugs, so what do i do ,swallow a large dose of something that turns my poop to liquid to fill my diaper, ? use suppositories ?or maybe a small enema with plug inserted after enema , with plug bunged up with butter or something, that will evenyually melt, releasing thr enrma into the djaper, ........or ?

One of my favorite things to do it drink a bottle of liquid magnesium citrate, insert my hollow butt plug and diaper well.