Predefined sliders - Grasshopper improvement

[Oscar3Dr]

It would be very interesting to have custom boxes with list of values ​​or predefined sliders. The value list now is possible in Grasshopper 1, but I don’t find how create a custom slider embedded in my custom box.

[Oscar3Dr]

This would be a better idea. In one click could open all the predefined options. (Slider, slider list, boolean…)
If I enter an image it could have a preview of the image.