@plypencil Crash with flood fill deleting liquids confirmed. Should be fixed soon. Thank you.
@Hellome (running scripts from file) It just reads console commands from a file and runs them. Not (yet) a fully fledged scripting language. One additional feature in running them from a file is replacement of coordinates in the form x+2,y-3. E.g. If you do 'file filename 123,234' where filename is a plain text file containing set type x+0,y+2 pscn Then it will change the particle at 123,236 to PSCN.
the file reading also does have 'if' statements, here is an example (it can only check type currently) if type x+0,y+0 dust set type x+0,y+0 deut set life x+0,y+0 9000 else reset pressure endif
as you can see it isn't very pretty, that file would need to be run with a location, it would turn dust into deut, if no dust, it would just reset pressure.