Welcome to the forum, Sandie! No question is too dumb to answer, and yours is not dumb!
We have a Weber grill that uses the small disposable propane bottles, we bought an Extend-A-Stay Deluxe which allows you to hook up these types of appliances to your RV propane tank.
RV Upgrades sells this, this is the link:
http://www.rvupgradestore.com/index....OD&ProdID=1236
The "Deluxe" version allows you to do what you want to do. Both these allow you to hook another gas bottle to your RV so you don't use all your propane up when staying for an extended time in a CG. Don't get the Standard kit, as it does not allow you to hook up appliances.
There is another product, about $40 cheaper called Extend-a-Flow which just allow you to hook up appliances, but IMHO the cost difference was not enough to justify buying the cheaper one, especially because we may need to hook up a bigger gas bottle if we get to camp in the coach for extended periods

. Here is the link to that one:
http://www.rvupgradestore.com/index....OD&ProdID=1234
Good luck!
Stewart