i think i know what you mean.

learn to use the automation function in fruity (starting point: right click whatever you want to automate and then click........ you guessed it, automate). i would explain but it can be a bit wierd to get you head around and running through it in text would be a bit of a nightmare. i'm sure you can find tutorials online....

anyway, once you've learnt how to automate stuff you can get vst's to turn on/off when you want (+ a fckload more), which means you won't have to use a new pattern & effects track each time you want to add an effect over a sound you're already using......