When editing items you may want to lock those items for other users. While locked items are visible and attached files can be downloaded, the items can not be edited. The lock indicates that the item is being edited and probably not up-to-date. When having reworked the file you should unlock the item again.
In order to lock an object, activate it and select the
option. The locked object will now appear with a padlock icon.If desired, you can naturally remove the lock again via the relevant panel option.
The functions
and can also be activated via the context menu.