Retraction tower 0.5 - 4

In Ultimaker Cura
1. Add Post Processing>Modify G-Code
2. Add a script > ChangeAtZ
3.Layer 0.2mm settings:
Layer No. I Retraction Lenght
10 I 0.5
40 I 1
70 I 1.5
100 I 2
130 I 2.5
160 I 3
190 I 3.5
220 I 4