Fill In form to update data

Hi,

I am trying to use a fill in form to pull data from a sheet so it can be edited or added to and then update the original record.

In the attached file when you click the blue update button I have created a fill in form. The "name" field is a drop down list and I would like it to once I have selected the name to populate the rest of the form (L to U) with any data that is available. Then I can edit and add any data that I require and finally click update record to write the changes and addition to the worksheet.

Thanks for the help. Ian