Colintree listview extra button problem

Make else block in second gree circle blocks section

i did as you explained with else even without else then i get this runtime error: "The operation ExtraButtonImage_ cannot accept the arguments: , [(( .NJC Radio Online;))], [1], [icons8-heart-outline-50.png]
Note: You will not see another error reported for 5 seconds."

Ok then duplicate for each number block that you used and place it after setting list in colintree list view but before dismiss progress dialog and remove blocks add item to list from duplicate for each number block set length of list to global list and keep everything else remain same and try it

Here is some mistake because we can not extra button image if there is no list with extra button so we have to set list first to colintree then this block will work and you will not get error

finally i found a solution. Thank you very much @CJcorp :pray: :pray: :pray:

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