Populate Master workbook with selected cells from all remaining open workbooks

I have attached Master as an example of what my Master workbook looks like. Book2 is an example of the file I need to pull selected cells from and populate into the Master. I typically don't have more than 5 of these open at once.

Process:
I will receive emails with up to 5 Book2 like individual workbooks attached. I open them all up. I open the Master workbook after. Unfortunately the filenames I receive are random generated names so can Master check for <> name Master instead of hard code Book2?

What I need:
Master to import highlighted cells from Book2, Book3, etc and paste them in the cooresponding highlighted cells in Master. Book2 would be row 2 in Master, Book3 would be row 3, etc. The blank cells in Master row 2 (not highlighted) will be filled out already. If Book3, Book4, Book5, etc exist I need Master to copy the white cells of Master row 2. (example: If Book3 exist, B2 = B3, D2 = D3, E2 = E3, H2 = H3, etc)

Please let me know if I need to answer any questions. Thank you very much!