Is there a reason why you are limited to have only 7 entries in a time range ?

I'm trying to create a time range to be able to turn off wifi radios for 2 time frames to be applied for 5 days any it won't let me create more than 7 entries total.

(IE:, Sun to Thursday from 7:00pm - 930pm and from Mon to Friday from 4:30pm - 5:30pm = 10 total entries) 

Per the default Customize option captured above you'll see the "Add" option is greyed out.  If you delete one or more of the current entries it will show up again, but only until 7 entries are present.  

Please expand on the max number of time ranges allowed or give the user the option to select more than one time range in the wireless network / wlan schedule / time range field.