If I remember correctly some Meanwell type of converters allow parallel use. They have a kind of current sensing wire and compensation circuit. I believe there’s also an application note available on their website.
-- BrumoD

yeah, for proper load sharing they need a little bit of sensing, but some (not all!!) dumb supplies are designed for parallel usage too, just with less-perfect sharing. I just don't know if OP's particular one is or not and can't quickly tell from its datasheet (usually a bad sign).