Dear Hans,
I want to add more elements to the answer above. it is actually possible, but with a trick.
If your inventory doesnt contain a lot of data, you can use a separate workspace (linked with same collect data) only for plot and cluster ~~results.
~~results (**Don't set up a Sampling Design strategy in Calc**).
Here the steps to follow:
1. Create a workspace
2. Import collect data
3. Add the qty variables you want to calculate in Calculation section (e.g. volume, basal area etc..) and select the type of aggregation you wish to apply (e.g. sum, avg etc..)
4. Edit the formulas for the variables at step 3 in RStudio (BUT this time the unit should be U/ha eg. m3/ha. i.e. if you are editing volume, you first calculate volume in m3 for each tree and then divide the value for the area of the plot they where measured in).
5. Execute the processing chain (click source in RStudio, with calc.R as file to execute)
6. Click play in Calculation section
7. Access Saiku
You should be able to slice your results for the entire hierarchy of the survey in Saiku.
Please let me know if you need more info,
Thank you,
Mino