I am FI RESTRICTED SEP and I fly a SET rating of which I want to be CRI do I have any credit in the training

Holders of FI RESTRICTED SEP or SE-SP certify that they have received instructional training in SEP and have carried out the competency assessment also in a SEP and therefore both requirements can be validated for the purposes of training and competency assessment in SEP to obtain the CRI(SEP). 
Being a FI RESTRICTED holder of SEP, the CRI (SEP) can be recorded if requested and meets the prerequisites of CRI (FCL.915.CRI) because the training and assessment of competence are already accredited in the FI RESTRICTED (SEP). 

FCL.915.CRI CRI - Prerequisites

The applicant for a CRI certificate shall have completed at least:

(…)

b) for single-engine aeroplanes:

1) 300 hours of flight time as a pilot on aeroplanes;

2) 30 hours as pilot-in-command in the applicable class or type of aeroplane.

Likewise, holders of CRI(A)SEP may extend CRI(A) SET LAND or SET SEA in accordance with the provisions of FCL.905.CRI (b): 
The privileges of a CRI are restricted to the class or type of aeroplane in which the instructor's proficiency assessment was conducted. The privileges of the CRI shall be extended to other classes or types when the CRI has completed, within the last 12 months: 
(1) 15 hours of flight time as PIC on aeroplanes of the applicable class or type of aeroplane;  
(2) a training flight from the right seat under the supervision of another CRI or FI qualified for that class or type, occupying the other pilot seat.