The most suggested feature is here: select multiple unit with a selection box and copy-paste them anywhere with a Ctrl+C!
You can also undo and redo your previous action with (Shift+)Ctrl+Z.

Also, you now have ice on mountains tops and on forest grounds near poles.

Remark: For the selection, there might be some position offset when you copy or paste over pentagon/heptagons, but those are highlighted so you'll see if this is the case.

Plan B - v0.9.3 build 1014

Major improvements:

• Multiple selection, copy (Ctrl+C), cut (Ctrl+X), paste (Ctrl+V). Use selection box, double click, and modifier shift/ctrl to add/remove from selection. Use E/R to mirror or rotate selection. Export or import selection to windows clipboard (Shift+C, Shift+V)
• Undo (Ctrl+Z) or redo (Shift+Ctrl+Z)

Improvements:

• Drag system improved (ghost item while dragged). Need some time to trigger, to differenciate from selection box
• Display ice on mountains and under forests in poles, and in high mountains in lower latitudes
• Add mouse wheel sensitivity option
• Dynamite mountain models more discreet
• add info page for selection, copy-paste, ctrl-build, undo

Bugs fix:

• Fixed bug with space that toggle menu
• Fixed ship path over spacelift cable
• Fixed ship path flashing in green/yellow
• Fixed water flow line going crazy after a terrain level tool
• Fixed bug with info panel

Minor:

• Update loc from/to Crowdin

Plan B - v0.9.3 build 1015 - HOTFIX 2025-05-10

• fix research center disappearing when they complete while player is doing a duplicate/drag with any other building

Plan B - v0.9.3 build 1016 - HOTFIX 2025-05-12

• Delete key only sets the delete mode, Backspace to delete the current selection
• prevent the drag of spacelift (from its exterior hexagons)

Plan B - v0.9.3 build 1017 - HOTFIX 2025-05-13

• Fixed freeze/bug sometimes when doing cut/drag of a group over itself

Plan B - v0.9.3 build 1019 - HOTFIX 2025-05-14

• fixed inactive depots after drag