There will likely be occasions when you want to change the floor title(s) on a plan e.g. if the plan is a flat you may wish it to say the floor the flat is on if it is not the Ground Floor.
To change the floor title:
Tap on the floor title.
Select Change Title....
You can now select from the preset list or type what you want to use where it says Enter your own.
Tap on Ok.
The floor title will update to show what has been chosen.