multiple loops in sametime

I create a button that can detect several checkboxes, however I can not find a way to run those checked checkboxes in the same time. I try to use individual if for each checkbox, it can be well run when the checkboxes checked. But when I use pause for each indivdual checkboxes, the loops would not run in the same time count the pause together. they become to go through the pauses one by one in each checked checkbox. Is there any way that can make those pauses start together?