hmm I think I see what you're trying to do with that extra information.
You want to be able to click a name from form1 - have form2 show any previous notes in datasheet view but additionally enter the customerID in the new record row of that datasheet view.
You *may* be able to do it by vba moving to next row but I'm not sure how it would then select the notes column.
A possibility would be to when clicking the name have it vba insert a new record then do a doCmd and switch the form to acFormDS - but you still wouldn't select the new table row that's entered - it would however have entered the customerID for you.
outside of controlling the action by opening a new form, entering data, and closing it/opening the form again in datasheet view - i'm not sure how to accomplish what you're trying to do. Datasheet view is just that, as a table.