Remove small holes tool

When editing imported reliefs, you sometimes accidently create those little tiny holes that emerge when a subtraction is applied to unwanted area. Normally, the remove small holes tool is used, but sometimes, multiple passes are required, or the tool simply isn't detecting the holes. Currently, there are no parameters to "play around with", meaning that, frustratingly, the process of repeatedly opening up the relief drop down menu and selecting the tool under the "edit" category, must be undertaken. Therefore, I think a greet addition to this tool to tackle those problems would be the ability to alter the sensitivity (wider holes will be targeted and affected) and the number of passes that the tool is doing.