The following steps will help you omit a secured, unsecured priority, or unsecured non-priority claim from the creditor matrix. You also have the option to omit an unsecured non-priority claim from Schedule E/F. 

In your case, choose 'Secured Claims' or 'Unsecured Priority Claims'.

The pop-up window for that claim will show in the middle of your screen. Note the first column in the pop-up screen. There is an option to 'Omit from Creditor Matrix' at the bottom of the column. Mark this checkbox to omit this claim from your creditor matrix. The same process applies to unsecured priority claims

To omit an unsecured non-priority claim from Schedule E/F and the creditor matrix, click on 'Unsecured Nonpriority Claims' in your case. Edit the claim you would like to omit.

After the pop-up window for that claim shows in the middle of your screen, note the second column. There is an option to 'Omit claim from Schedule E/F and Creditor Matrix'. Mark this checkbox to omit this claim from Schedule E/F and the creditor matrix. 

You also have the option to omit only from the creditor matrix and report the claim on Schedule E/F. 

In Chapter 11 cases, you can omit Unsecured Priority and Unsecured Nonpriority claims from the List of Creditors Who Have the 20 Largest Unsecured Claims Against You.