I am working with a double stain of a skin biopsy. I have divided the biopsy into dermis and epidermis and detected/marked the 2 cell types of interest in these to areas (using the pixel classification tool and annotating each type). Furthermore i have divided dermis into 4 equally big sections. Now i want to isolate/select the specific cells/areas within each of the sections without having to classify the cells within each section again. Is this possible?