Can I use it as an Opera module instead of Solo's extra chest of drawers?

Hello? Arttystation.

Thank you very much for your interest in our Arttystation ^^

Unfortunately, the Opera module and Solo product you contacted are not compatible because the size of the product is different ^^;
Of course, you don't care about the right size, and you can just put it on a similar size and use it.

If you have any other questions, please feel free to contact us.

Thank you ^^