It is a lot harder than I thought! In my case I can sort of see scenarios that I visualise, but touch, taste and smell are non-existent. But it is always with a black ground and seems muted.I find that in my sport I can and do visualise particular moves and combinations of play before a game, but when I am on the rink i am very much in the moment.
Interestingly a 2015 study that found that there is a small number of people who are unable to visualise at all – a condition called Aphantasia. http://www.sciencedaily.com/releases/2015/08/150826101648.htm