Add an option "Start on boot after XXX milliseconds"

Some container trigger start on boot when the system is not fully started, which will cause startup failure. I know we can use scripts to delay start, but this method is not elegant enough. Strictly speaking, this is a functionality lack of Container module. Hope the official can add an input box for “start on boot after XXX milliseconds” as the picture shows
1.jpg

you can use scheduler for this

/system scheduler
add name=schedule3 on-event="/container print;\r\
    \n:delay 1\r\
    \n/container start number=0"  start-time=startup