We had a forum post that highlighted how people new to Backdrop get frustrated when they are not able to see their theme changes right away. Even when someone mentioned looking for theme update/refresh options they were unable to find the "Flush CSS/JS cache" link.
I would like to propose that we add a button to the top of the Appearance page for clearing the CSS/JS cache.
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You are right, that was it... Now my problem is I would like users being able to select from pre-established options, like a drop down or maybe an autocomplete. For that I would the Autocomplete...
Can't filter content in a View
Here goes the screenshot for the exposed filter config I will try the module you are telling me about. thanks again!
Can't filter content in a View
See also my screenshot of a view with Entity Reference relationship (right column) and a filter which uses the relationship:
Can't filter content in a View