[xep-support] Conditionally outputting a block

[James Murphy]

Simple question (probably demanding of a fiendishly clever answer...):

Background - I'm outputting a catalogue. Said catalogue inevitably has
large blank spaces at the end of some sections as each section starts on
a new page.

Question - is it possible to define a block (or even better, blocks
plural) that are only output if there is room for them on the "current"
page? I can sort of see how it might be possible, but I can't pressure
of work prevents wandering off to explore the complexities without at
least some indication that I'm going to looking for something that can
actually be found!

TIA, Murph


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