Doubts on piping

Hi to all,
as you can see in the attached image, I have elbows and bends.
To do this I selected the option 'Prompt for selection'.
Clearly, for big routes this is not ideal.
There is a quick way to switch from elbows to bends and vice versain some place, with 'Always use elbow' option set by default ?

Another question :
I'm creating a main route assembly which contain two sub-assemblythat represent cold water and hot water.
How can I create a sub-assembly route inner the main assembly route?

I ask this because if I insert a flange when I'm in edit mode ofthe main assembly, SW create an assembly route at the main levelstructure.

Actually I insert the flange, press esc at the 'Route properties'mask, select the CPoint and start route.
SW generate a sub-assembly with only the pipe, then i drag theflange and drop into the sub-assembly.
A better solution ?

Thanks,SolidworksRouting