To edit a specific solution,
From the solutions list view page, click the Subject link of the solution which you want to edit.
Click Edit button available on the right hand side of the View Solutions Details page.
In Edit Solutions page, make the necessary modifications. The title, contents, and the topic under which you wish to place the solution are mandatory fields. You can also add more attachments or delete existing ones.
Click Save button. If you do not want to save the changes and get back to the solutions listing, click Cancel.
On saving the solution, the status of the solution shows Unapproved. The solution has to be submitted for approval to the concerned technician. To know more on refer Submit for Approval.