I didn't find anything labeled "twist" - but some of the Rock&Roll arps should work for you unless you need to exactly match a pattern of a given song.

I pulled up a piano part and assigned an arp by doing a search on piano for the main category then typed in "rock" in the search (magnifying glass) field. You can highlight a given arp and hold down a chord to hear what it sounds like.

As far as Rumba - there are arps which match the name - take a look at the data list:

Dr/Pc World 8928 MA1_RumbaFlamenc 4 / 4 4 106  Power Standard Kit 1
Dr/Pc World 8929 MB1_RumbaFlamenc 4 / 4 4 106  :
Dr/Pc World 8930 MC1_RumbaFlamenc 4 / 4 4 106  :
Dr/Pc World 8931 FA1_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8932 FB1_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8933 FC1_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8934 BA1_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8935 EA1_RumbaFlamenc 4 / 4 3 106  :
Dr/Pc World 8936 EB1_RumbaFlamenc 4 / 4 3 106  :
Dr/Pc World 8937 MA2_RumbaFlamenc 4 / 4 4 106  Pop Latin Kit
Dr/Pc World 8938 MB2_RumbaFlamenc 4 / 4 4 106  :
Dr/Pc World 8939 MC2_RumbaFlamenc 4 / 4 4 106  :
Dr/Pc World 8940 FA2_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8941 FB2_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8942 FC2_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8943 BA2_RumbaFlamenc 4 / 4 1 106  :
Dr/Pc World 8944 EA2_RumbaFlamenc 4 / 4 3 106  :
Dr/Pc World 8945 EB2_RumbaFlamenc 4 / 4 3 106 

I appreciated your help Jason !
Thanks