1. Set a default flag :
Right click on any flag to show the flag menu. To set the color of the flag you wish as a default flag, left click on the checkbox next to the flag. Then clicking on the other items will color flag them.
2. Set a non-default flag :
To select a non-default flag, right click on any flag to show the flag menu. Left click on the color of the flag you wish to select it. The item is now marked with the colored flag you wish.
3. Rename a flag :
You can rename flags for greater personalization. Right click on any flag to show the flag menu. Click on the name to edit it. All the flags you edited will have the same name.
4. Flag multiple items :
Selecting item you wish to flag. To flag multiple items, right click on any flag to show the flag menu. Click on the color of the flag you wish to select it, all selected item are now marked with the color of the flag.