Changes
/* Beta 3.0.24.0 (2019-07-XX) */
* All graphs now support a configurable grid size and a the snapping of elements to those grids; they can be configured in the settings of the respective graphs
* Dropping of new elements on a graph now leads to the popup of a wizard control, prompting the user to fill out the most important properties of the newly created entity; this behavior can be turned on or off, per entity type, in the ''New objects'' section of the ''Project'' settings
* Cross-worksheet Drag&Drop is now possible
** therefore every SmartModel exposes a ''Self'' property which can be used as the drag source from an Inspector
** all Worksheets and Tools now activate themselves if an object is dragged over their header area
