I've never bolused straight from my Insight pump - I always test and then let the handset work it out for me.
However, I do use the pump itself for setting temp basal rates, as I often set these based on a Libre bip rather than a blood test result - I use TBRs an awful lot, and it's easy to set these via the pump rather than the handset, I find. If I'm testing, though, that means I've got the handset out and on anyway, so whenever I'm testing and then also needing to do something involving insulin, I'll just program it from the handset.
This thread has prompted me to review my instructions manual, though - as I think I really ought to know how to do everything from the pump!!!