In the app I'm working on, it should be possible to move tasks from one machine to the other, but changing its duration (by clicking on the left or right border of the task) shouldn't be possible.
How to achieve this?
Best answer by Mischa
This should be possible when combining a Start parameter which is updateable (i.e. having no definition in AIMMS) and a Duration parameter which is read-only (i.e. having a definition).
If your duration parameter is conceptually updateable in your model (for example, when it is the result of an optimization), you can create an extra duration parameter to use in the Gantt Chart and which has a definition which is simply defined as the original parameter.