Thanks @voxman55
Yes it's not greyed out, it's definitely not there, and nother preset also has both wah and volume pedal blocks missing.
I was I guess just curious, strangely enough the 2 presets which have these blocks missing are my best sounding presets, coincidence I know....or can't think of a valid reason why they should be, given I never have these 2 blocks enabled when they are there.