I have set a pad to 50% on the pcb edge, in order do solder it to an RGB-LED stripe later. I want to have the same result compared to an ESP8266. There you also have a solderable hole-half. Will this here have the same effect? Or do I have to use a special function for this?
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
See "Min Castellated Holes" in:
https://jlcpcb.com/capabilities/pcb-capabilities
and:
https://easyeda.com/forum/topic/castellated_holes-z82k0wc6o