Dear @UserSupport, please fix [this issue](https://easyeda.com/forum/topic/Copper-Area-Add-Rmove-Vias-not-working-or-feature-not-clear-ff0ea29cb3ff4fac8be76b56e7bf9a37).
The workaround there is confusing and a little onerous, but works if you're only adding vias to one net, e.g. GND vias. But if you need to do both power and GND, then it becomes even harder.
Just my vote, but I really think this bug should be prioritized.
Chrome
93.0.4577.63
OS X
10_15_7
EasyEDA
6.4.20.6