A feature i'd like to see implemented is a brim under the supports.
It helps a lot to have a thin 1 layer plate under the supports so that they just can't detach from bed while printing.
To do it i just create a thin plate and add it to the bed. Basically it just has the shape of the shadow of the model with a light perfectly on top (sorry if i don't explain this correctly :/ ). But it's a bit boring and it would be very nice to have an automatic option