Found a workaround.
The file you’re looking for is widgets.php in wp-content/themes/glow/inc.
Look for a piece of code labeled ‘Services’. A bit further down there is a bit (line 556 for me) like this:
$dt_service_counter = 0; $dt_service_counter < 6; $dt_service_counter++
The 6 is the amount of pages you have to select when configuring the widget. Change this (you might want to create a backup first) and save the file. When you now drop the widget in a page in the admin panel it’ll show that amount of pages.
Ofcourse a better solution would be to make 6 a variable and available as an input field.
Hope this helps.