my alternate method right now im using custom transform orientation for sliding single vertex but id like to know if there is separate function similar to edge slide for quicker sliding
Select vertex and use menu Mesh / Vertices / Slide or
Select vertex then Ctrl+V / Slide or
Select vertex and use shortcut Shift+V or
Select vertex and use shortcut GG
As a reminder: Ctrl+E, Ctrl+V and Ctrl+F will open the context menues for edges, vertices or faces. If in doubt, you can find most of the “special” functions for the corresponding component types there.