Serbian Belgium artillery units

[JBa]

Playing v 1.24 as Entente
The Serbs and Belgiums both receive an artillery unit as a reinforcement. How do these countries get Barrage points for the repeated firing of the artillery.
Only Industrial points can be transferred to the countires which only allows the purchase of Arms and Trench points.

[FrankHunter]

Once the new version is posted, Serbia, Belgium, Bulgaria and Romania can buy barrages.