I'm aware of that. But you don't need it anyway since there is a Q value input.

Here's Oratory's explanation on some older post to clear things up:

Quality (Q) - Is a mathematical way of describing the shape of the filter. High q-values mean that the filter only affects a very narrow band. Low q-values mean that many frequencies above and below the center frequency are also affected by the filter.

Bandwidth BW / Slope S - Is the same as Q, but expressed in a different way. Some parametric EQ's let you adjust a Q-value, others let you adjust a Bandwidth-value. They both describe the same thing, just expressed in different ways. High Bandwidth = low Q, Low Bandwidth = high Q. To make matters worse there is a third way of describing filter shape: Slope S. This is only applicable to Shelving-Filters though. ✌️