Pause at layer

[Lexan]

you can find all supported Gcommands in the github smartto files

[anrkii]

My A30 was pausing at random during prints for no apparent reason using Cura prepped Gcodes, requiring a press of the resume button, multiple times during some prints.
It was driving me nuts.
Once I upgraded to the latest firmware, this issue is fixed, and print quality has improved.
Maybe try firmware?