Yes, you can.
After adding new custom entries into your Filters list, click the top bar that says "Click here to see more options" to bring down a drop-down list.
There is an option within the list which you can enable to 'Make these the defaults'.
After adding new custom entries into your Filters list, click the top bar that says "Click here to see more options" to bring down a drop-down list.
There is an option within the list which you can enable to 'Make these the defaults'.