Users are encountering issues with the Help dialogs in PDI opening too small for an ease of use. We can make a better experience by doing the following:
1) By default, Increasing the minimum width of the dialog to where no horizontal scroll bar is needed. (I believe 1000px will achieve that).
2) Setting the minimum height to a 600px will also improve the experience.
3) Remember the dialog size after you close the dialog then reopen it.