Yes, just got internet back after a few weeks so catching up.
About the intro page - aka Ibox, there's Ihub rules and then there's other new board mod rules.
Normally, a mod can only put new stuff at the end of the page, unless they had previous stuff, which would allow them to correct or add at the portion already placed by that mod within reason.
Or do what new mods to a board who have urgent deadline business to do and wipe stuff off, fill in a few or twenty scrolling pages of stuff, save it when done, and wait. And when someone squawks why is my stuff gone? Just go , "I didn't know" and you will be asked or admin will revert it back to before you changed it. Playing ignorant works well with intro pages as they only need a week anyways.
Good luck.