delta neutral butterfly

[Matthias Kurz]

Hello, I try to configure a delta neutral iron butterfly.

1. For the attached example I got: "Order variables must enclosed in a WHEN Block with matching OrderID"
    I tried to fix that with the shown hack in the when block, but it dit not help. I tried several other stuff, but did not get it.

2. How can I selectHigherCallStrike so that the whole butterfly is nearly delta neutral? It's delta should be between -0.5 and 0.5. Could not find
    an example here in the group or the templates.

3. How can I close the position when the price of the underlying is <= the break even of the left side of the tent? Is my try correct? (last close condition)

[OptionStack]

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[Matthias Kurz]

Thanks for your help! Here is my latest try:

https://think.optionstack.net/zs/3/k-gw6LSuZTTSXIostzDUFoVU7dd9%2FE5mv8K2BiDDyS0cGfPG3TCD83fENIF15HSk3U