I know that Data Player 2 in 2.6 is still early stage so its difficult to judge new functionality. Are you proposing to include a contents tab or annotations, anything that will allow for some brief commentary or instructions.
Also assuming that multi tab data players will remain a feature.
Just planning ahead for how might be able to use this.
We will try to add annotations to DP2 at the tail end of its 1.0, but the functionality will be pretty basic. You already have the ability to add a Header to each view and enter/format text, so you can put comments there.