Hello there!
I am designing my first PCB with EasyEDA, and I am having trouble writing the line on top of the pin names (that means NOT).
For example, if I want to write ENA like that, how can I do it?
Thanks!
PS: I know I can draw the line on top of the name, but I want to believe there is a better way.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
In LTspice preceding a name by an underscore (for example, _ENA) works but I don't think that is implemented in EasyEDA.
A preceding "/" may not work as I think that gets mis-parsed.
A tilde character "~" does not work as that gets mis-parsed.
I usually put a lower case "n" at the end of the name. Some documentation I have seen uses a lower case "b" at the end of the name.