User form to display adjacent cell value and move to next blank cell

Hello,

I'm looking to create a user form to quickly enter information into a spreadsheet. I'm new to Excel forms and have searched, but can't seem to find examples of what I'm looking for.

I've tried to keep this example simple. In short, I would like to be able to call a form from any tab inside a workbook, then based on the cell I choose enter information in the empty cells below it. I think the process would work as detailed below;

User will select a specific cell (D6)
User will call UserFormA
UserFormA will move to the first empty cell below specified cell (D8)
Display Value in Cell (B8) in TxtBoxA
If ChkBoxA is true then (D8)=1 else (D8)=0
If ChkBoxB is true then (E8)=1 else (E8)=0
If ChkBoxC is true then (F8)=1 else (F8)=0
When CmdButtonA is pressed apply Values to cells D8, E8, and F8
Move to Next Empty Cell (D9)
Display Value in Cell (B9) in TxtBoxCurrName
If ChkBoxA is true then (D9)=1 else (D9)=0
If ChkBoxB is true then (E9)=1 else (E9)=0
If ChkBoxC is true then (F9)=1 else (F9)=0
When CmdButtonA is pressed apply Values to cells D9, E9, and F9
Move to Next Empty Cell (D10)
Repeat until UserFormA closed

Thank you for taking the time to look this over.

JJ