OnTagsDropped - Auto Axis to display Eng Unit Label

	#Set up the chart defaults. 
	default = ['DefaultName', # name
	'[~]DefaultPath', # tag_path
	'MinMax', # aggregation_mode
	'Default Axis', # axis
	1, # subplot
	True, # enabled
	"color(255,0,0,255)", # color
	'', # dash_pattern
	1, # render_style
	1.0, # line_weight
	0, # shape
	True, # fill_shape
	False, # labels
	'', # group_name
	False, # digital
	False, # override_autocolor
	False, # hidden
	True, # user_selectable
	None, # sort_order
	False] # user_removable
	
	tagpens = self.tagPens
	for path in paths:
		newrow = default
		newrow[0] = path.split('/')[-1]
		newrow[3] = system.tag.read("%s.EngUnit" % path).value
		newrow[6] = self.autoColorList[tagpens.rowCount % len(self.autoColorList)]
		tagpens = system.dataset.addRow(tagpens, tagpens.rowCount, newrow)
		
	self.tagPens = tagpens

Absolutely possible; here’s a rudimentary implementation of onTagsDropped that will do it. The “important” line is: newrow[3] = system.tag.read("%s.EngUnit" % path).value