This feature is available from WPLMS version 1.9.7+
Use Google Fonts API to include the Google Fonts In WPLMS
1) Go to this link:https://console.developers.google.com
2)Create a project by clicking on "Create a project " button.
3)Go to APIs in API and Auth and click on web fonts developers API.
4)Enable the API.
5)Go to Credentials in API and Auth and click on create new key in Public API Access.
6)Select server key and left the field blank and click on create button
7)Copy the API KEY and Go to vibe option panel->Font manager->Paste the API key here.
8)Select Fonts from live theme editor and then click on save changes.
9)Now change the fonts from Wplms->customize.
10. Video