Add keybind switch to three coloumns

[TegarOk]

Its really hard to get 1 row & 3 coloums configuration.
The default configuration was 2 rows & 2 coloumns, if i set 2R & 3C the rows will be filled first instead coloumns, so its really hard to get 3 coloumns at first.

[lingtjien]

If you want 1x3 then why do you set it 2x3 why not 1x3?

[TegarOk]

Sometimes i need 2 rows.
And i dont want to switch my configuration everytime.

[lingtjien]

So if I understand you correctly, you prefer to fill all the columns first before we start a new row as in the following example?

with 2x3 (2 rows, 3 columns)

1

1 2

1 2 3

1 2 3
4

1 2 3
4 5

1 2 3
4 5 6

[TegarOk]

So if I understand you correctly, you prefer to fill all the columns first before we start a new row as in the following example?

Yes.

[lingtjien]

Added to other task #89