Notation for trill defective

[andrew9311]

I have a whole note to notate to trill. When I choose triplet in the Ornament palette and also a 16th note for the trill, it does not come out as expected. I expect it (if written out) to be 8 groups of 16th note triplets, but it only give some strange groupings other than expected. Also, I have to repeatedly press my mouse over the trill to bring out the menu for me to choose "convert ornament to written out performance".