This is some instruction for the docs ( you can ignore ):
<code class="language-cpp"></code>
Try adding + before each Tag:
[/Script/GameplayTags.GameplayTagsList]
+GameplayTagList=(Tag="Vehicle.Air.Helicopter",DevComment="This is a custom tooltip!")
+GameplayTagList=(Tag="Movement.Flying",DevComment="")
+GameplayTagList=(Tag="Movement.Hovering",DevComment="")
+GameplayTagList=(Tag="Movement.Landing",DevComment="")
https://docs.unrealengine.com/4.27/en-US/ProductionPipelines/ConfigurationFiles/
Special Characters
- + - Adds a line if that property does not exist yet (from a previous configuration file or earlier in the same configuration file).
- - - Removes a line (but it has to be an exact match).
- . - Adds a new property.
- ! - Removes a property; but you do not have to have an exact match, just the name of the property.