Trim SmartBothKeyCreator \ Modify \ Trim \ Trim-SmartBoth
Modify>Trim>SmartSingle function. To understand the use of these two functions (SmartBoth and SmartSingle), it is helpful to compare them with Modify>Trim>Both. With Modify>Trim>Both, trim is accomplished by selecting explicitly the two desired entities involved in the trim. But with the smart functions, it is only necessary to select one entity. KeyCreator then automatically selects the second, intersecting, entity nearest to where you clicked on the first entity. So the location where you click on the first entity is crucial in determining which second entity KeyCreator selects automatically for the trim operation.
SmartBoth does what SmartSingle does (trim the selected entity to the intersection of its closest neighbor) and additionally it trims the closest entity to that same intersection position as well. Note this special case: if both the selected entity and its closest neighbor are closed entities, the function will return a 'No entity found in vicinity of selection' as there is no clear solution for the trim operation. It ignores trimming the closest entity.
Note: The SmartBoth function does not support selection of Solid entities.
Using the Function: