Redmine

I have a group of issues that are related. Each issue will start when the preceding related issue is completed. I have setup my issues with the relations in the issue editor. When i push the first issue out by a few days, all of the other issues roll forward as well. This is the behavior i want. But, then when i pull back the first issue the other issues stay where they are. Now, i understand that this behavior is correct in most situations. But, is there any way to have it pull back the dates for the related issues as well? This is important to me, because the business users i support are constantly (sometimes hourly) changing their priorities on their projects. And i need to change the dates on my issues so that way they know when to expect the deliverables and they can coordinate their issues. Or, maybe is there some way to select all of the issues i want to move and just move them all forward or back by some specified time amount? Since the business users i support are changing priorities so often, it becomes very tiresome to move each issue back and forth multiple times per day, was just hoping there was a better way of doing this.

thanks.