I recently posted a question about an fft patch I’m trying to build. I would like to interpolate two waveforms~ on drawmode with a pattr object, but it is impossible. I don’t know if it is possible to input lists of X and Ys to "edit" the waveform automatically in its buffer~, without any mouse clicks. it it was, I could interpolate those lists. I figured I could use multisliders or tables instead and get the X and Ys but I don’t get how I can send the value of the slider corresponding to the index of the waveform~. I have found a patch that allows to edit a waveform with a multislider, but once a waveform is stored in a buffer, the values of the multislider are converted into negative and positive signal values, which can’t work in my case. I have attached two patches below. You need to save them in the same folder. Thanks for you help.