I would like to return for configuration properties on getAll with AbpUserConfigurationBuilder
What is the best way to do it.
I know I can create a new service and call it, would like to be able to extend existing one if I can.
Just derive your new class from AbpUserConfigurationBuilder and override any method you want. This will be available in ABP v3.5, see <a class="postlink" href="https://github.com/aspnetboilerplate/aspnetboilerplate/pull/2863">https://github.com/aspnetboilerplate/as ... /pull/2863</a>.
Probably ABP v3.5 will be released today.