clustering - how to customize similarity function

Hi

so clustering is basically based on similarity/distance functions in which one example is compared to all the other examples of the data set.

Now I want a similiraty function in which the cell of an attribute/feature is not compared to all the other examples - instead that particular cell should be compared to only a given range of defined values. For example: a cell can have two possible values [yes,no]. So the similiarity function should compare the given cell value with just the values 'yes' and 'no'.

Is this possible with RM? If so, how?

Thank you!