I - Commands  
INTERSECT_1MUL (command)
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It creates regions from the intersection of two regions and removes the areas outside of the intersection

 Command line:  INTERSECT_1MUL

 

Select the first region to intersect, then press Enter. Use an object selection method

Select the regions with which to intersect the first, then press Enter: Use an object selection method

Example:

Here is the result when selecting at first the pink region and later the azure regions.