Sorry Dave,
I've been in the garden all day, so just got this. I don't think it can be done, though the tempo can be locked. Perhaps a suggestion for an OS upgrade? This is something I never use. I find performances so convenient, I use them for everything. I never use the exact same sounds for two songs. There are always at least a few tweaks here or there. However o remember the fuss when my HX came out. It lost the 'D' button and a lot of people weren't happy. So I guess like you there are many others who may want this feature.

I'll suggest it, but would suggest you contact Roland too. The last few strangers Roland have made have had good new features added through a softwRe upgrade, so now us the time to ask for what you want.

John