Yup. In the 80s and early 90s I was doing educational training for the local schools and tech support for my team and the other educational support teams around us. Which I took over after the guy who'd been doing it, a deputy head, took on a headship. Because there just wasn't any properly qualified tech support for primary schools and support services. In later years when there was professional support and systems were much more complex ( what with networking and security, stuff that we hadn't even dreamt of when I started) I still did a lot of that, but the trick was always to know when to do it myself and when to call the tech support team. Often just for hand holding or to check that my plan was right and get the go-ahead to sort the problem out myself.