Keep with previous

I was wondering if it is possible to use an attribute in elements such as the fig element in order to force them to appear with their previous element in the text. Currently, I am doing this by using the KeepWithPrevious  element in the EDD; see here. Consequently, all the figures tend to stick to their previous element. This can be sometimes undesirable. However, in my opinion it would be more appropriate to use an attribute in the fig element for doing this. This way it would be possible to select which figure is to appear with the previous element. I appreciate any help to achieve this.