Should a dropdown be marked required in it has a default value?

I’m designing a form to create violations of employees from various departments. For quicker choosing the employee, I have a field for users to filter the department that the employee is from.
Value of Department field are:
All (default va…
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Translating list with checkboxes, to a combo of dropdowns

I have this list with checkboxes:
My Product Manager wants to consolidate the information, because:
It’s overwhelming.
It takes up a lot of space, and we may not have all that space, where this feature is going.
No one will ever need all…
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Page Heading Menu [closed]
![Page Heading Menu [closed]](https://uxsharelab.com/wp-content/themes/proxima/images/thumbnail-placeholder.gif)
Has anyone seen any more examples of using a dropdown menu in a page heading?
I have seen square and hubspot do this but I’m sure there must be more examples.
Basically the page title has a ▼ and you can quickly switch view.It means there …
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Multiple choice dropdown – when items are selected they are moved to the top of the dropdown

Does anyone know if moving selected choices to the top of the multiple-choice dropdown is a good design pattern? This would prevent users to scroll through a lot of content to preview active fields.
Below quick example – before and after:
…
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Should dropdown caret icon change when open? [duplicate]
![Should dropdown caret icon change when open? [duplicate]](https://uxsharelab.com/wp-content/themes/proxima/images/thumbnail-placeholder.gif)
In a typical dropdown component that has a text label and a caret icon, should the caret change direction (or shape) when the user opens the dropdown menu?
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Why use borders around dropdowns in a mobile app?

I’m working on a mobile app with a GUI similar to the Gasbuddy mobile app.
The first screenshot is what Gasbuddy looks like now. The 2nd screenshot is the same thing but without the borders around the dropdowns.
I may be overthinking, but …
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Dropdown menu or Select vs Dropdown menu with radios inside

Im wondering if anyone has any research or experience on how dropdown menus or selects perform compared to dropdown menus with radios controls inside.
I’m considering using them for a filter bar as I already use checkboxes inside dropdown …
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Hide already selected options in the dropdown

In the case of a multi-select field, I would like to know the best practice:
Hide the choices that have already been selected (the list gets smaller as you go along)
Leave the choices already selected with a "selected" status
…
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How can I display large amount of active organizations within the platform?

Currently when the user uses the platform is able to choose an active organization (within his organization) and which data he wants to include. The current solution indicates a narrow bar under the top navigation which informs the user re…