Preferred method to get "dynamic" fields?

[CollinHeist]

Some fields are "dynamic" in that PowerWorld creates them on the fly - in particular I am thinking of the various LinePTDFMult:1 fields generated by a multi direction PTDF calculation.

Currently, since these are not returned by the GetFieldList SimAuto call, they are flagged by ESA with the following error:

ValueError: The given object has fields which do not match a PowerWorld internal field name!

When it attempts to clean the returned DataFrame - note that the raw return by SimAuto is correct in this instance. However, the LinePTDFMult field is returned (and handled properly by ESA), so I feel as though ESA should use this data to inform the type coercion of the associated LinePTDFMult:{n} fields, so the user does not have to disable the pw_order attribute altogether.

---

For example:

from esa import SAW

case = SAW('case.pwb')

case.RunScriptCommand('DirectionsAutoInsertReference(Bus, "SLACK", YES);')
case.RunScriptCommand('CalculatePTDFMultipleDirections(YES, NO, AC);')

# Works fine, returns a valid DataFrame
case.GetParametersMultipleElement(Branch, ['LinePTDFMult'])

# Available within the case (and returned by SimAuto), but will throw a ValueError
case.GetParametersMultipleElement(Branch, ['LinePTDFMult:1'])

---

Thoughts on how these should be handled? Thanks!