Feature Request: Partial position search

Hi. It would be great to have a partial position search feature. For example, I'm looking for all games where the following partial position occurred.

Similar to the Opening Explorer, this feature could work with the Lichess database and the Masters' database. I can't actually find any website that offers this feature. There are some programs you can download but I'm looking for an online version.

As an extension of this, integration of Chess Query Language (CQL) would be quite a nice feature...

Go Tools > Board editor > set the position > Analysis Board > press opening explorer

But position must be exactly. Would be a nice feature but don't know how much would be the CPU costs.