[SOLVED]Struggle with Rollershutter HMIP-BROLL

I´m using Homematic Items to control my Rollershutter (HMIP-BROLL)
First thing that doesnt work is:
when i say: Alexa - Rollershutter Up / down it always switches to the wrong direction (up to down and down to up)
I solved this issue with a dummy item…
Also i noticed now a Problem, when i trie to set a actual Position, i get an error on 0%
The Rollershutter doesen`t move so i have to set 1% as a “fix” to get it to work.

sampel Rule

rule " Rollos im Erdgeschoss"
     when
       Item Rollos_EG_dummy received command
       then
       switch Rollos_EG_dummy.state {
        case receivedCommand == ON: {
            Rollos_EG.sendCommand("100")         
    }
        case receivedCommand == OFF: {
            Rollos_EG.sendCommand("1")
            }
    }
end

one Rollershutteritem

//Rollo Flur OG
Rollershutter RolloFlurOG "Rollo Flur OG"      <blinds> (Rollos,Rollos_OG) {channel="homematic:HmIP-BROLL:3014F711A0001F58A9A710DF:00111A498E377D:4#LEVEL"}

Also, im only using Channel Level4 to control the Rollershutter. I have no clue if the other Channels are useful to control the Rullershutter....maybe someone can give me another Example or an explanation....im constantly trying to learn and improve

Thanks very much

Given Rollos_EG_dummy is a Switch Item and Rollos_EG is a Rollershutter Item, a more apropriate rule would be

rule "Rollos im Erdgeschoss"
when
    Item Rollos_EG_dummy received command
then
    switch (receivedCommand ) {
        case ON: {
            Rollos_EG.sendCommand(100)
        }
        case OFF: {
            Rollos_EG.sendCommand(1)
        }
    }
end

Thx for the hint…this will make my Rules a bit cleaner…

Still struggling with the HMIP-BROLL :frowning:

the Solution for my Problem is in this thread

thx @philissimo - great work !

@romibaer you’re welcome.