Besides the increased embed limit you can adjust all items very easily


F4 (GhostMode) will let you place an item free without using the parameters which are included in the item, instead you will use the nadeo standard grid snap (in some cases this will help)

Rotating is shown on the image above

I made a map that has 1.7MB of embedded items which obviously is too much, but is it possible to make them downloadable so others can get them automatically?'
I've seen it on some maps where it automatically downloads a load of skins and other things before the map is loaded.
Is there a tutorial for that kind of stuff?

Unfortunately this is not possible, only exceptions would be a title pack what maybe is to much effort for a single map (and besides that only people which have this tp can play this map than)

btw. regarding the image above, we have a total new FAQ on IX:
https://item.mania.exchange/faq

including a new picture showing the item placing details