Planning for a big trip with my IL's, 11 people total.  We will be at CSR for the holidays in 4 rooms - hoping to be in same area, not expecting adjacent rooms.  
Had a few ?s:  first, I have read there is an internal bus system but is that mainly for to/from check in?  FIL has knee drama and I have hip issues; we are good 99% of the time but wondering if we overdo or torque wrong one day do we have some back up?  (FIL is a bad luck magnet medically... Has a propensity to visit local ERs when travelling *smh* 

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Second, is there any way to use DP for room service?  I know some places have the ability to use credits for pizza... just wondering if we can use for anything else?
Finally, MIL is a holiday junkie and a little bummed we aren't doing traditional holiday at home.  Have a small tree and decorations to surprise her with but was also thinking of decorating windows... do people do that at CSR?  Nothing crazy, maybe lights and garland?  I know the rules (no tape, timers...) But didn't know if other people decorate?
TIA and excited to go!!! CSR was first choice for farm so FD was bonus!!!