If you want to type epsilon or varepsilon
If you try to write \varepsilon or \epsilon or but the plug-in “LaTex Suite” autofills e\psi lon instead, you can simply type
:e
or you can type
@e
to write the varepsilon or epsilon respectively.
If you open the snippets of the community plug-in “LaTex Suite”, you should be able to see something like: {trigger: “:e”, replacement: “\varepsilon”, options: “mA”}
The triggers are alternative notations of the symbols.