Pausing in position G-Code

[KinCatia]

I'm trying to write G-code for my A30 to Home, move to directly over the 1st bed level adjuster come down and pause so I can adjust it then go on to the next one and so on. I can do everything except pause in position. Does anyone have a command that will work? I've also as a work around tried to slow move the nozzle sideways very slowly F0.5 but it totally ignores this and just does the move at normal speed. Any thoughts or help appreciated.

M0 Bed Clear? Press button to continue
G91 ; move relative
G1 Z8 F500 ; move up 8
G90 ; move absolute
G28 X F1500 ;Home X

G28 Y F1500 ;Home Y

G28 Z F1000 ;Home Z

;Move to Front Left
G1 Z20 F1000 ;Z to safe height
G1 X46 Y46 ;Go to first XY position at front-left
G1 Z0.1 F50 ;Lower Z carefully
G1 X45 F0.1 ;move slowly
G1 Y45 F0.1 ;move slowly

[William]

Hi, A30 uses Smatto firmware