Astroprint slicer gcode does not include bed heating

Hello,
I want to use AstroPrint with my ender 3 but with brand new slicer profile there is no bed heating command in code, see below.
What am I doing wrong? I guess I could put it in printer start commands but would loose control over temperature.
Thank you in advance for your help.

;FLAVOR:Marlin
;TIME:6666
;Filament used: 0m
;Layer height: 0.1

;Generated with Cura_SteamEngine master
M104 S220
M105
M109 S220
M82 ;absolute extrusion mode
; Ender 3 Custom Start G-code
G28 ; Home all axes
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
; End of custom start GCode
G92 E0
G1 F2400 E-5
;LAYER_COUNT:332
;LAYER:0