editing a spreadsheet using a userform

Hello.
Im just trying to learn VBA via forums.

I need your help in completing this userform.

I have created a userform where you can add data into a worksheet.

What I'm trying to do now is to edit the data (previously added) by autopopulating it and editing it in the userform.

The code I found on other sites are just for userforms with textboxes, however my userform has comboxes and it won't work.





Can someone help me?

Thank you in advance.