dot named external

Hello !
its possible to compile external with "dot" within the name ?
eg : ex.whatever.mxe // ex.whatever.mxo

naming project , files , c files and providing the name inside export definition file does the job .
The thing is that the object wont return new instance of itself , it finishes in "main" function and the object is grayed out .

if i dont do this naming convention of my desire everything is working .