Saving My Fav Lists / Search LIstmania Option

i wish i could save some of these lists to a "watchlist" type of feature. i find myself wanting to come back to certain lists because of the movies on them and i wish i could save it in a folder so that i can watch all the movies on the list. i dont nessesarily want to "follow" all of any particular "listmaker's" lists like you would on facebook, but i want to be able to refer back to them... also i would love to have a search option just for listmania so that i could search through lists of (for example British Dramas) and be able to look at all the lists that have british dramas on them. so you would probably have to require listmakers to select a genra of sorts or add keywords or tags to them so that they could be accessable in a search. also it would be nice as a "listmaker" to edit lists add to or delete from. those are my desires and i hope they are clear and helpfull.
thanks