That sounds like a great step in the right direction. Those 40min naps are either developmental or undertired - sometimes LO's around this age can have trouble moving from one sleep cycle to another as they become more pronounced around 4 months, so its not easy to say whether its UT/developmental.
We rub the doodoo (do you spell it like this?) In her face and she starts to close her eyes.
Not sure what you mean but doodoo - means something completely different in Australia but it sounds like you've got a comfort item she's associating with sleep

EAS is a routine, not a schedule. You can do it simply by following the order there - Eat when she wakes, play, then put her down for a sleep, eat when she wakes, etc. Its meant to give predictability to LO (to know these things will happen in order and needs will be catered to, ideally before they're screaming for it) and makes it easier for you to work out what might be needed when she's upset.
Yesterday this meant breastfeeding her every 2 or 2.5h, but the plus sidr was that after 19.30 bedtime she only woke up to feed at 3 a.m. (she was waking at 00-01!).
Sounds like it worked out well. Keep and eye out for long happy wakings in the early hours of the morning/waking up earlier and earlier for the day. Those are both signs she's needing to be awake longer. I think if you are able to go off her cues, her A times will probably increase gradually and things will work o0ut well for you all.
Lovely to see your growing confidence with your baby's cues!