set analysis to prevent user selection in expression

[#1]

hi does anyone know how i can amend my expression below to prevent user selection?

i thought the =only ({1} set analysis would do the trick but it doesnt like it.

See screenshot below which shows my current expression i woul like amended and the proposed expression which doesnt work.

By the way this expression representation is 'image'. I basically want to prevent the user form clicking the resulting image and filtering selections.

Any ideas?

[googel84]

Could you provide a little bit more context?

i don't think I got your message.

Thanks

[#3]

I have a table with a trend arrow. The expression i provided in this post creates the trend arrow.

I want to amend the expression to prevent the user clicking any particular trend arrow and thus filtering the table. In a nutshell i want to disable any user selections/filtering. I know how to do this with straight forward text expressions but not image expressions. i.e. i have prevented user selection in my table for Target 10-11 with the expression =only({1}[Target 10-11])

Below is a screenshot of how the table currently looks.

Hope this is clearer?

[#4]