@Straticah
I am referring to the general amplitude ADSR. I took a look at the C++ code. If I remember correctly, the parameters Attack and Release are present, they are just not made available to the user via a slider. I am currently finalizing a plug-in and therefore do not want to experiment with the HISE C++ code. However, when my plug-in is finished, I will try to implement the sliders myself. If I succeed, I will be happy to let you know. :-)