Using place holder before you start bot for programming

My boys made a placeholder to mark their starting spot when doing programming. They put the bot down w the placeholder and then take off the placeholder and then start their bot. Is this legal? At no time is the placeholder on the field while the bot is running.

I’ve seen many teams do this in edr without issues, I don’t see why you couldn’t do this in IQ, so I’d guess yes this is allowed