I think this is a usefull feature and i vote for this. Currently i find yesterday a way to get a workaround for this. maybe it work not on older than 4.6.1 because 1/1 quantize was not in because before yesterday i get not the idea. in note repeat is not more as 1/2 possible, but you can choose in note repeat QT. then it use top quantize setting. then it work good for all upto 1 bar length. it quantize note off too. also important to know, when s1 is stop it do not work correct. so need play a (empty) loop or record that note repeat work correct
in german forum i have do a feature request so note repeat is hopefully enhance to support 1/1 and 2/1 direct. see screenshot how note repeat and quantize is set