Is it possible to use font in application with names/tags but not unicode or copy/paste?

[Ethan Zhang]

Per title. Just get this idea from Google's material icon. While I use the material icon in sketch app, I could type text like a 'block' and change the font family to material icon and it will go to block icon. But for the icon fonts I created, I could only use it by Unicode. Could anyone help me with this? Thanks! 

[Keyamoon]

Yes, you can do that using ligatures. Press the "fi" button in the toolbar of the "Generate Font" tab to enable ligatures. Learn more here: https://icomoon.io/#docs/ligatures

[Ethan Zhang]

Thank you Keyamoon! Only a huge hug could express that!