Changing Visa Type for Spouse while still outside Belgium

Hi All,

I have a query with respect to changing the Visa type for my spouse so if anyone already went through below or have knowledge about this, please advise

my Belgian employer applied for my single permit through Flanders region in April and i got my single permit in August end and Visa stamped on 12th september. I had applied family reunification together for my wife and child which was sent to FPS on 7th Sep..So while waiting for the Visa for my wife, She also got an opportunity and the employer is willing to file required permit for her as well.

Question - Since my wife’s application is already with Belgium Immigration department is it fine to request them to change the visa type to single permit and provide required document or

shall we wait for her dependent visa and start the processing once we are in belgium. I read somewhere single permit cant be filed while in Belgium, so any other process we should go for.

Thanks in advance for your response.