When writing this specification, we were not thinking about implementing an IMS-LD editor in the short term. We think that in the market there are already very good IMS-LD editors, and that instead of investing efforts and resources in doing one more, we better work in order to provide a good IMS-LD player and a viewer.
In the future we might work on an editor, but now there is a greater need of a good player. We therefore provide support for the most commonly used IMS-LD editors (Reload, Coppercore and LAMS), which we mentioned above. Even tough there is a standard, there is always something different in the way each editor makes use of it, and we try to deal with it by being as flexible as possible, even tough sometimes it is hard to achieve.