(?) multiple slurs

These are l.v. ties (laissez vibrer, i.e. let ring).
There is a symbol for these, resembling a short tie, and it's available from the Articulations palette (under 'More', by default):

Unfortunately, they will be badly placed by default (centered on the note) and it's very awkward to get more than one on a chord at once, plus space won't be made for them by justification even if you do move them to where you want them, e.g.:

I believe they also have rather quirky effects on playback at the moment.

So to answer your question, no, there's no easy way at the moment unfortunately. We need a proper system for applying these to notes, with correct spacing, intelligent positioning on notes and chords and so on, and that is certainly high on my personal wishlist (and seems to be asked for fairly often).