I am working on a model where in a dashboard I have to reduce the time range of a drop down from 10 years to 2 years. It displays 10 years as it uses the original time period of the anaplan model thereby displaying the entire time frame in the drop down.
I already have a time range of 2 years created and the module from which data is flowing has been restricted to that time dimension. I can not keep the time dimension of that module from which data is flowing as 10 years due to workspace size limit. So there is a separate module which has been created from which the time range selector has been created on the dashboard. I have attached the images for your reference.
Line items formatted as time will automatically assume the largest time range possible in your model, from the earliest time to the last time of the model time scale or time range, whatever is the extreme on either side.
The only way that I can think to do what you are asking is to create a fake time list that has the two years that you want in the dropdown. Then you can map that fake time to the real-time, and have the drop-down line item based on your list instead of real-time, and use lookups in the corresponding line items that need to reference this line.
Not ideal, but it is a workaround to get you there.