Custom build number plugin

I created a custom build number plugin following the doc's example, which works great for us as we need all our configurations to be built in sequential order.

However the plugin only overrides the already issued number for the running build, therefor the plugin is out of sync with the build number shown in TC, is there any way for me to set the build number in TC under settings. Other than just write it to the database and circumvent TC.

Thanks,