ILR SET(O) Form for family

Hi folks,

I was just going through the SET(O) form for GTV UKRI funded endorsment. Why is the information for dependants (included in SET(O)) quite simple? They did not ask about when my dependants first arrived in the UK, so how can I prove that they have already been living in the UK for over 5 years (they came here with me since I was a PhD student over 6 years ago)? Or will it be in the supporting documents? In the finance section, they also just ask us whether to receive public funds or not. Should I submit my husband’s HMRC tax as well, or unecessary? Thanks. Anyone already filled out the form for dependants, could you please help?