X7 Transformation Docker increment setting

Hello, i am trying X7 and am having a problem with the Transformation Docker. The increment setting is automatically set to 1mm. This means that the changing arrows only change by the value of 1mm. Of course most of the time one wants to use a much lover setting, say 0.1mm. I cannot see any way of changing this setting. Have looked everywhere. I wonder if anybody here know if it is at all possible to change this setting and if so, where to do it. Many thanks in advance.