Repetier

I'm trying to find a way to change filament mid print for multi-color prints with one extruder. I'm using a Tronxy P802MA with the latest Repetier Host and Firmware. Using Slic3r to slice. Is there a way to pause, change color and resume with Repetier? I've tried inserting M600 into the gcode which does nothing. The lcd display does not have a pause/resume print option or a "change filament" option. I've inserted ;@pause into the gcode which does pause the print, but I don't seem to have any control after that and can't resume the print.
Any help is appreciated.

I am printing with a D805S or Z5FM2 by zonestar. It seems to go by a few names.

It is the mixed extruder version. I am choosing to print with just one of the extruders.

I am having a error when prints begin. It looks like this. The print goes on fine, but I am noticing that my extruder temp drops the entire time. From 210 all the way to 199 on a 5 minute print

hi guys I am building Vulcanus 30 you can find it in here or instructables but I couldn't set inductive sensor. led on it turn on when metal approach but don't stop the z motors. How can I work this properly?

hi guys can you please help me choose setting for repetier host becasue i use to use cura but i have this problem everytime i print anything it stop extruding after 30 minutes i checked the driver i bought a new sd card and i still have the problem so i tried to connect the printer to cura but it didn't work (anybody know how to fix it ) so when i tried to use repetier it connected but the setting didn't work with my printer it's fast and it didn't extrude much
thanks

When ever I try to use spiral vase... no matter what object- it always cannot find a g-code/file.