Staff Austrian Officer in green uniform

hello in TMP there is a discussion about what is a such Staff officer in green with blue collar and silver/white buttons painted by Albrecht Adam at the battle of Mincio in february 1814, the officers of the Generalquartiermeister had black facings and gold lace, and others Staff officers only red instead of blue as you can see and compare with the Mollo/Mansfield's plates in the link below

https://www.napoleon-series.org/military-info/organization/Austria/UniformPlates/Mollo/c_Mollo.html