Customizing object DNL_CUST_KTOKD1

Dear Colleagues,

In MSA, on BP tile, we fave R/3 acount group dropdown where we have all the R/3 acount group downloaded to CRM.

In my case, it is almost 15 acount group. This has been downloaded with the following (if I am not wrong):

From R/3 to CRM --> DNL_CUST_KTOKD

From CRM to CDB --> DNL_CUST_KTOKD1

Now In MSA, from that dropdown, I would like to remove few entries which are not used. I know it can be done by having filter on DNL_CUST_KTOKD (I tried, but can not put filter on DNL_CUST_KTOKD1). But the tables like CRMC_T077D (crm table) and SMOT077D (cdb table) are already filled.

SO what is the best and easy way to remove unwanted entry?

Please advice.

Regards

Yatin

P