SMART datagrid v.1 > Classes > FilterSelectorOptions
The minimum height of filter selection box. 
It is specified as a relative value (percent) about pixel fixed value or grid height.
Defaults to undefined.
    grid.setOptions({
        operate: {
            filterSelector: {
                minHeight: "70%",
                maxHeight: "90%"
            }
        },
        ...
    });
    grid.setOperateOption({
        filterSelector: {
            minHeight: "70%",
            maxHeight: "90%"
        }
    });
    grid.operateOptions().filterSelector().setMinHeight("70%");