Yamaha P515’s FC4A other alternatives than FC3A & LP1B pedal set

[nfp001]

Hi fellow musicians,

I am new here. I have the P515 for quiet practice and my repertoire consist of 90% classical music. Also, I use pianoteq as my main output sound (VST), because I find it superior to the internal CFX one.
My question: I do not need the optional 3 pedals set and the wooden frame, would it be a possibility for me to buy a separate universal pedal to take advantage of half pedaling?

PS: In Canada the FC3A is way overpriced and not easily available.

For exemple:

Amazon Basics Sustain Foot Pedal for Keyboards Digital Piano https://www.amazon.com/dp/B07WSF2QTB/ref=cm_sw_r_cp_api_glt_fabc_PVBTYRQ7AX0PZ5HGWT5A

Also, would there be a way for me to use the FC4A pedal as an interchangeable (una corda, sostenuto) pedal by using an adapter and going through the aux of the P515?

Thanks, I really appreciate your help guys 🙏

[danno88]

I believe in the manual for the P515 (which you can find online) it states that half-pedaling only works with the optional 3 pedal attachment.  The single floor pedal does not support half pedaling.  And it gets plugged into an entirely different jack than the optional 3 pedal attachment.