Hi Alfren,
The way Moodle displays checkboxes is very non-standard. Typically checkboxes should appear before the text, not after. I had to swap them around recently but did not find any way of doing this without modifying core Moodle code. So instead, I added the following JavaScript my theme:
<script>
$( document ).ready(function() {
// ******************************************************************
// Move checkboxes in front of text instead of after.
// ******************************************************************
$('.fitem_fcheckbox > div').each(function() {$(this).prependTo(this.parentNode);});
$(".fcheckbox").css('float','left');
$(".fcheckbox").css('margin','0 10px 0 13%');
$(".fcheckbox").css('width','auto');
$(".fitem_fcheckbox > div.fitemtitle").css('width','auto');
$(".fitem_fcheckbox > div.fitemtitle").css('text-align','left');
}
</script>
It assumes you have jQuery loaded. If you don't, you will ether have to load it or re-write this without it.
While it won't help you put your checkboxes in two columns, it will look better.
Keep in mind that changes you make to the presentation of checkboxes will likely affect other pages on your site besides the page you intended to fix. I was also doing it only for the User Profile page so I added a little PHP around this to conditionally have it apply only when the user or an administrator was editing a user profile. You can do this by checking the URL.
Hope this helps.
Best regards,
Michael Milette