Slide The Door Open
But that last one seems a bit peculiar.
Slide the door open. Then lift the door up and out of the track laying it down carefully across two sawhorses. First slide open the door completely and remove the head stop. Please slide the door closed. Which made me wonder if open is the verb and slide is the adverb.
Slide open door would be the imperative voice probably used here to be short and clear. Sliding doors are very heavy very breakable and very expensive this is a two person job. Please slide the door open. Never leave the glass door unattended.
It seems like i am trying to say.