To edit the document, go to the 'Documents' section in the 'Company' block in the menu on the left, choose the document you want to edit (if needed filter first), press the three-dot button next to its name, press 'Edit,' make nessesary changes, and save the document.

To delete documents, follow the same steps: choose the file you want to delete, press the three-dot button next to it, and press the 'Delete' button.