multiple sequences

[guai]

Is there a way to reset a sequence? for example: these lines selected

1
1
1
2
2
2

to be replaced with

1
2
3
1
2
3

or maybe increment while line numbers goes in sequence and reset on new line, like so:

1
1
1

1
1
1

to be replaced with

1
2
3

1
2
3

[krasa]

nope

[guai]

@krasa, pls add this feature then. or something similar