The glueing, could happen as easily as if grouping a bunch of sliders (and just sliders) would reckon what they are and turn them into a bundle.
On the topic of layout, I couldn´t agree more with you about the tranquility, but right today I had to do something I guess should not be so unusual.
I set a bunch of n sliders, for asigning 0 to 1 values with 5 decimal points. As you might guess, the first one usually goes from 0.00000 to 0.10000, the second from 0.05000 to 0.15000 and so on. If set equally, at the end, they “draw” sort of a harmonious curve, BUT at the really fine tuning stage, and to make the most out of canvas space and not turn them into something monstrously long, I ended up reseting the range of each slider. Instead of all going 0-1 each went to around its value. Result, an ugly bunch of dancing points on the canvas, but as UX is a breeze as I actually click on the slider and drag it right and left while looking at the screen for evaluating the result.
BTW, when I try to click-drag the slider point and instead end up dragging the whole slider around the canvas is really irritating as I have to turn the gaze to the canvas a loos focus from the screen. Wouldn´t it be nice to be able to fix some components to the canvas?