Does the new spec of slcan allow adjustment of parameters such as SJW?

[robin48gx]

I have some CAN devices which use ceramic resonators as clock sources. These are typically a little fast, maybe 1/2% fast
but can but up to 1% fast.
In order to cope with this a higher SJW is required.
I have noticed using some slcan classic devices missing messages because of this.
I can receive them on STM32G devices I have programmed in C and MCP2518 SDS CAN HATS I have configured,
but some USB2CAN devices using slcan will miss the messages and raise can error frames instead of re-syncing and getting the messages correctly.

If slcan does not provide SJW control, is it possible to raise this is a feature request ?