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Select next sibling on pressing Shift + Left/Right 

Using Shift + Left/Right key combination it is now possible to select multiple sibling nodes. Examples include: method parameters, array literal values or statement siblings. You can then copy and paste this list into other suitable places that would accept copied nodes.

https://youtrack.jetbrains.com/issue/MPS-23097

 

UI improvements in Diff/Merge dialog windows in VCS

The width of the editor areas is not fixed anymore, one can move the splitter in both directions. Highlighting of changes has been improved. Triangles and trapezia we had before in the spliiter area have been replaced by smooth polygons  Tooltips for the changes are displayed both in the editor area and in the splitter area.

 

'Show Generation Plan` action gives more details

When a model has a plan that controls its transformation, 'Show Generation Plan' action offers a handy way to understand exact steps the transformation would go through. In this EAP, the action got few improvements. Now, in addition to transformation steps, the action tells where it derived generation plan from (e.g. through a custom module facet or a devkit), gives name and a link to generation plan node (MPS-31935). Besides, transformation steps bear name of the generator module when template model name is not qualified (MPS-31354), which helps to distinguish similarly named model (MPS used to create template model named 'main' in all new generators. Having few such generators in the plan make it quite confusing). Another common complaint was that the languages excluded from a model transformation due to restrictions of a generation plan are not easily discoverable, which has been addressed as well. Languages used in the model but not covered by the associated plan are reported by 'Show Generation Plan' action now. In addition, 'Used Languages' tab in model properties warns about such languages, too (MPS-29720).

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