How to bind exsisting users with ones from LDAP - by: ast

Having Projeqtor installed in production environment I have successfully added the option for users to connect with their OpenLdap ID but now I would like to bind the existing users in Projeqtor (they already have plenty of data inside since its been in use for several years) with the existing users in openLDAP . I have tried searching the forum but didn’t find any information about this.

I would like to know if this is even possible and a tip or two on how to do it, if it is.

Thanks in advance