Opens the colum sizing modal. This operation should be wrapped in another operation to set the popoverAnchorNodeId, contextNodeId and hierarchyNodeId. This popover only works for tables which support their column widths to be set. CALS tables are an example of this.
If the context node is set to a table figure (the
<table /> element in cals), the first table node (
<tgroup /> in cals) will be used instead.