The menu items were incorrectly included in Dorico Elements, but the actual explode functionality didn’t work properly, because it ended up doing a normal paste, so all of the music got duplicated to all staves. I apologise for the oversight that meant the menu items were present when they shouldn’t have been.
What I meant is that this function is included and working properly on Dorico 4 Elements. But it seems it is meant to be removed in Dorico 5 elements due to some sales strategy.
I’ll hop between Dorico 4 and Dorico 5 depending on the composition stage.
In Dorico 5.0.20.2042 the functionality IS still available and works ok - I’ve only used the Reduce to combine 3 staves to one - so it would seem that it’s only a menu oversight.
To access them you need to set up key commands in Preferences>Key Commands>Edit.