Remaining Problems

Dear Zoho Sheet Team

I wish to list remaining items which I am interested in and would be pleased to know whether these functions are now supported?

1
I wish to group / ungroup rows

2
Can images be inserted into cells?

3
Can buttons be inserted into cells?

4
Can cells be merged vertically?

5
Can text be rotated 90 degrees?

I look forward very much to your reply, many thanks

Kind regards
Hans