Use the block.bottomElement parameter to query the element number of the last visible element in the block selection. If there is no visible block selection, block.bottomElement will return zero.
query command
Global.
query block.bottomElement
query block.bottomElement
block command
query command
block.anythingSelected parameter
block.bottomPosition parameter
block.elementText parameter
block.inView parameter
block.text parameter
block.topElement parameter
block.topPosition parameter
block.type parameter
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