Error Select list item: Attempt to get item number

I don't find the + block

The + block is in the math blocks section.

You can right click it to switch between inline and external sockets.

Thanks, I found it.

Where I can put the call sumCase block?

In the setListviewElements procedure do this:

image

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Very good and thanks for your help.

Question, if I duplicate this screen the tinydb use the namespace or whatever where I add tinydb it's always the same ?

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