Shelly i4 to open and close Covers with a Shelly 2PM?

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Hi,

i´m using Shelly 2PM to control my Windowcovers. Now i want to use a Shelly i4 to open and close them. One klick Button 1 should open them - one klick Button 3 should close them. Kind of easy.

Problem:
Long press Button 1 should drive them up until i release the Button. Same with Button 3.

How do i do this?

Kind regards,
Dominik