To choose correct script type for desired passenger behaviour:

Door_yD.osc - passengers will use all doors for entry/exit

[entry]
1

[entry]
2

[entry]
3
{noticketsale}
{withbutton}

[entry]
4
{noticketsale}
{withbutton}

    etc. // add withbutton to door 1 (not 0) to add possibility for script to track CG state, and to give passengers ability to move to door 1. Without it they will go to door 2,
    and door 1 only when it's open. Thats only for behaviour

DE_Door_yD.osc - passengers will board in front, exit in rear

[entry]
1

[entry]
2

[exit]
3

[exit]
4

    etc. // remember to add only 2 path entries, and 2/4/6 path exits.
    
DEmixed_Door_yD.osc - passengers will board in front, but will use 2nd door if it's open. Exit only via doors 2, 3 and 4.

[entry]
1

[entry]
7
{withbutton}

[entry]
8
{noticketsale}

[entry]
9
{noticketsale}

[exit]
8

[exit]
9

    etc. // remember to keep that layout as is. Only 4 entries, and 2+ exits.