Different configuration for first 3 layers possible?

Hello,

I've been experimenting mostly on PLA to make a decent print with a "simple" add .STL file, hit Print process, and finally came to a routine that works like a charm. The big BUT is, it involves some manual changes in the extrusion multiplier once I hut the Print command. I'll explain what I've setup.

MatterControl 1.1 latest release
Cura Slicer
Robo3D PLA 1Kg spool.
Bed Temp: 55°/50° (first layer/other layers)
Extruder Temp: 182°/177° (It makes a difference!)
Z offset: .75 ( I think it does nothing in Cura)
3 Layers on top & bottom

Now for the tricky part,

Once I hit print and it reaches printing temp. I have to lower the extrusion multiplier to .6 until it finish the first layer which is almost .1mm thick (checked with vernier)
Then I have to jump and increase to .75 on the 2nd layer and .85 for the third.
and finally, when almost done with the 3rd layer, set extrusion multiplier back to 1.

The prints come out really good.
Now I don't mind waiting by the printer on a small print to change the settings on the first 3 layers, but for large prints it can be a little pain in the b-hind.

Question for all of you that know more than I do:
1.- Is it possible to pre define this options to automatically add in GCode before actually printing?
2.- Does anybody figure out a way to prevent this (picture) from happening? I'm guessing it has to do with the nozzle being blocked somehow. it happens with PLA as well as ABS, hot end is up, away from curled end

Best regards.

Eduardo Toscano