Zigbee2Tasmota Can't control smart curtain switch from Zigbee2Tasmota

[qntris]

PROBLEM DESCRIPTION

I have successfully installed two QS-Zigbee-S10-C04 curtain switches and paired them to Zigbee2Tasmota. When operating the curtains manually (through the physical button on my wall), I can see that that they report:
tele/tasmota_7ECADF/7C1D/SENSOR = {"ZbReceived":{"Device":0x7C1D", "CurrentPositionLIftPercentage":20, "Endpoint":1, "LinkQuality":80}}
Pressing the physical buttons of the switch also work correctly (trigger the up/down/stop position of the blinds). However I cannot find the right command to use with ZbSend through Zigbee2Tasmota. Can anyone help with that?

Tried sending commands such as the following, but nothing happens:
ZbSend{"Device":"0x7C1D", "send":{"power":1}
ZbSend{"Device":"0x7C1D", "send":{"power":2}
ZbSend{"Device":"0x7C1D", "send":{"power":0}

What should I do so that I can control those? P.S. I am able to successfully operate (control/read) other devices through the same Zigbee2Tasmota - switches and sensors. I just don't know what's the right command format for this particular smart curtain switch.

REQUESTED INFORMATION

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• [x ] Read the Contributing Guide and Policy and the Code of Conduct
• [x ] Searched the problem in issues
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• Device used (e.g., Sonoff Basic): QS-Zigbee-S10-C04
• Tasmota binary firmware version number used: 13.4.0
  • [x ] Pre-compiled
  • Self-compiled
• Flashing tools used: _____
• Provide the output of command: Backlog Template; Module; GPIO 255: