Help needed for partially working QMotion CuTrak drapery track please

[shoei600]

Hi all,
I have tried to follow the guide but it does say ask for help here if needed. I have transitioned from ZHA to Z2M and so far all had been going well. I have a zigbee cutrak drapery motor from QMotion which has paired and will work using the position value 0 - 100% but not open, close, stop. 'Position' doesnt show up in HA Matt device so is not selectable, but open, close stop does. How/what do I need to add to the 'generated_external_definition' too expose the position command in Home Assistant please?

Many thanks.

`import * as m from 'zigbee-herdsman-converters/lib/modernExtend';

export default {
zigbeeModel: ['Track Drapery'],
model: 'Track Drapery',
vendor: 'Current Products Corp',
description: 'Automatically generated definition',
extend: [m.deviceEndpoints({"endpoints":{"1":1,"196":196}}), m.battery(), m.light(), m.windowCovering({"controls":["lift","tilt"]})],
meta: {"multiEndpoint":true},
};`