Syntax: !emptiesThis command will search through the hierarchy rooted in the current cell for empty symbols. An empty symbol is a cell which contains no physical or electrical objects or subcells. This test is performed automatically when a new cell is opened for editing, though this can be suppressed by setting the NoCheckEmpties variable.
If empty cells are found, a pop-up appears, which allows the user to delete the empty symbols. The pop-up is similar in appearance to the Merge Control pop-up, which appears when a cell in memory may be overwritten. A list of the empty cells is shown, each followed by ``yes'' or ``no'', where ``yes'' implies that the cell will be deleted. Initially, all listings will be ``no'', but these can be changed by clicking on them. The Delete All button sets all entries to ``yes'', and the Skip All button sets all entries to ``no''. Pressing Apply will actually perform the deletions.
If all the listed cells are deleted, Xic will search again for empty cells, and update the pop-up if any are found. Additional cells may now be empty due to the deletions.