SET( LR) Questions

I have few questions regarding Set (LR) :
1. I was on a one-year ICT short-term visa, which expired in August 2016. I returned to my home country and came back in November 2016. Do I need to mention anything specific in my ILR application about the approximately 90-day gap?
2. I was initially employed by Company ABC Ltd, which sponsored my skilled worker visa. Last year, I switched to another company within the same group, ABC Services ltd, and received a new skilled worker visa. Even though both companies are part of the same group, the new visa was issued.
• For the ILR Set (LR) application, which start date should I use? I’ve been with the ABC group for 3 years, and they provided a Bonafide letter stating the start date of my employment with them. Getting the required letter from them is quite a hassle.
• Can I mention Company name like ABC Services Ltd & ABC Ltd with start date going back to 3 years. I don’t want queries from them so seeking your advice.
3. What kind of documents required in - Documents supporting my other reasons to stay in the UK

Firstly, go and read this --> Changes to the Long Residence settlement route from 11 April 2024

1. No

2. The long residence has no employment requirement and your employment history is irrelevant. Enter whatever

3. If you answer yes to 'Do you have any other reasons to stay in the UK', the system will ask you to provide evidence for this and you will get confused. Ignore this as you do not need to have 'other' reasons

Thank you @Zimba . Very much appreciate it