Can I buy additional dimmer switches so I can individually control the lamps per room in my house?

The description lists that I can control up to 50 lamps from 1 wireless box... so my query is will the included dimmer switch work all 50 or can I have separate switches to individually control each room without having to use the app every time I wanted to turn the lights on? For example say I wanted to kit my house out with these lamps, I'd rather not need to have the lights running in every room when I switch them on in the lounge.

Thanks in advance

Philips Hue White Ambiance Lighting Starter Kit E27

Philips Hue White Ambiance Lighting Starter Kit E27

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