Happy New Year everyone! I've just put out a minor demo update with a new selection menu, optimised intersection testing when aligning parts together, and several bug fixes. [b]Selection menu[/b] This is a new menu that provides more ways to add and remove parts to / from the selection. It's accessible by holding the [b]Right Mouse Button[/b], deletion has now been moved to [b]Left Shift + RMB[/b] by default. Of course the key bindings can be changed (in the controls options menu) if you prefer. [img]https://clan.cloudflare.steamstatic.com/images//37970304/fc275ddb2e0be88cd9a51408c580091c88193a7e.jpg[/img] With the selection menu you can:- [list] [*] Toggle targeted part selected (shortcut key: [b]Left Ctrl + LMB[/b]). [*] Select all parts in targeted construction, deselecting anything previously selected (shortcut key: [b]Left Ctrl + A[/b]). [*] Add targeted construction to the selection, without deselecting anything. [*] Grow the selection, adds parts neighbouring those already selected (shortcut key: [b]Left Ctrl + Up Arrow[/b]). [*] Shrink the selection, removes parts with unselected neighbours (shortcut key: [b]Left Ctrl + Down Arrow[/b]). [*] Invert the selection, selects parts in targeted construction other than those already selected (shortcut key: [b]Left Ctrl + I[/b]). [*] Deselect all parts (same as left clicking while not targeting anything). [*] An option to enable selecting both highlighted parts when targeting an attachment. [*] Destroy all selected parts. [/list] I hope to expand this menu eventually to include things like: the ability to hide selected parts, save & recall selections, and filter selection by part type, material, paint colour etc.