Setting locations by numeric longitude and latitude

I made a world clock that randomly changes times to show in every 3 hours, using KLWP's "time zone per layer" function. Now I'd like to add weather features to it.

It's great that we can set different time zones to each layer and I really appreciate developers' effort for that feature. However, location settings is still limited to three preset locations (except current GPS location), and the time zone settings don't affect weather information and forecasts.

It would be better that each layer's location could be customizable with numeric longitude and latitude.

I hope my idea attracts you. Thanks!