The 'F7' button located on the toolbar at the top of the page can be selected by using the corresponding F7 key on the keyboard or by using a mouse click.

F7 - First (Page)

When this button appears in the toolbar, you can select 'F7 - First' to move you to the first record in the database.

(This function is only available when the record is being viewed in a non-editable state, i.e. Before you have accepted into the record)

F7 - Action

When this button appears in the toolbar, you can select F7 to display a series of options in order to change the details of a record.

Example