Shelly 2.5 as pulse relay to switch existing dimmer

I have a dimmer (Jung 1731DD) which is mainly operated manually, but I would like to switch this dimmer on in case I’m not at home. This dimmer can be switched on/off using a pulse signal (relay on for 100ms). To make this work I have a Shelly 2.5.: One port is used as pulse relay (shelly is configured to automatically switch off after 0.1s). the other port of the shelly (always on) to feed the dimmer and measure the power consumption of the dimmer The shelly 2.5 is controlled via MQTT. C

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Shelly Dimmer2, Relay Switch, WiFi Smart Home Automation, Compatible with Alexa & Google Home, iOS Android App, No Neutral and Hub Required, Wireless Light Switch, Smart Appliances, Smart Dimmer