In the Diagrams Options, under the General Options > Dialogues, there are a number of values that can be set up to control the initial layout of the dialogue columns. The numbers are given as a percentage of the total dialogue width. By entering -1 as column width, the column will automatically adjust to the free width.

Here it is also possible to configure tooltips to be shown in the dialogue. This can for instance be used to show the description of an equipment item when the mouse hovers over the equipment name. The format of the tooltip definition follows the Attribute Presentation Notation format, please refer to Attribute Presentation Notation in Chapter Appendices for further information.