Sandustry Blueprint Import and Export
Press C to select, Ctrl+C to copy, Ctrl+V to test, then save the newest Clipboard History item in Building → Blueprints. Export and Import use the complete blueprint string; Ctrl+H flips the active copy.
Copy the intended boundary
Complete the module first, press C, and include every Belt, Filter, Launcher, and support block needed at the edge. Copy with Ctrl+C, then test with Ctrl+V before creating a permanent saved item.
Save and name the history item
Open Building → Blueprints and save the newest Clipboard History entry. Use a name that identifies the input, output, and direction instead of a generic label that becomes ambiguous in a larger library.
Export or import without editing the string
Copy the whole Export result. Paste the whole value into Import and confirm it; current example strings use the SAND:BP:v2: prefix, but that prefix is version-sensitive rather than a promise of permanent compatibility.
Flip and perform a post-import check
Ctrl+H flips the current copied selection; repeat it for another flip. Check Filter directions, tileable edges, available terrain, and Pipes after every import because liquid connections may not be part of the copied block selection.