Can't get RFLInk and RTS working

Configuration
1

Hi i have a RFLink configured and can read the commands send from the remote.
When i then configure the RTS in my homeassistant i see it as a standard light switch. After that i can send a on and off command but i need to be able to send a up down and stop command can somebody help?

platform: rflink
devices:
newkaku_003333ae_1:
name: ContactDoos
rts_893333_01:
name: Rolluik voor

2

as a small workaround you can configure it as cover or blind or one of the available classes:
configuration.yaml

cover:
  - platform: rflink
    devices:
      newkaku_01bd142a_f:
        name: Rolluik

stop button won’t work but you can double click the up and down arrows to stop it at the desired hight.

Cheerz,
Peter