The functionality of Drag and Drop has been added to R:BASE 7.6 for Windows.
When using Drag and Drop in R:BASE, a source control 'copied' to the target control, and can include all relative properties from the source control. The source control uses "On Start Drag", while the target control uses "On Drag Drop". Any controls on your form that you would like enabled for Drag and Drop would be enabled using "Enable Drag and Drop" by selecting this option. When you select "On Start Drag" or "On Drag Drop", the R:BASE Editor will open allowing you to include command syntax for your Drag and Drop end result.
When running your form, the drag appears as a box along with the cursor. Data is moved to the target through the drop operation.