o103repeat[500]
M101 (this will simply do a gedit "hello.txt & exit")
m66p1l4q10 (this is a command which means wait until input DIN-01 come to a triggered state, after 10 seconds if not triggered it will move on the next line)
M101 (Same thing but, during that ten seconds timer lets change the file to 'eog picture.png' & exit)

o103endrepeat

now we can keep changing that file on the fly and it will continue to change.. soo we could for example
if sensor x is in 0 state then
call m101 ->mdi do something
if sensor x is in 1 state then write m101 -> do something else

and those could be modified on the fly from an external source like, windspeed, or tempurature I dunno anything :P