If you have not passed the CPL exams, your instruction is limited to LAPL level.
However; if you held an FI rating prior to EASA without CPL level knowledge then you are not restricted to LAPL, this apllies to quite a few AFIs and EX RAF QFIs who obtained a FI rating on a PPL. Under JARs they could not let such a rating lapse more than 5 years without having to complete the CPL TK, but this ceased under EASA.