Custom Activities: Popup builder for an activity argument

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Hi All,

I’m building a custom activities library (via VisualStudio not UiPath Studio) and wanted to check if anyone knows how to achieve a “dictionary builder” effect like there is with SetTransactionStatus or BuildDictionary activities

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The other activity has a similar solution but the popup window looks a bit different so I assume I’ll have to get my hands dirty and design&develop some custom popup. By default (when I added a Dictionary<string, InArgument> parameter to my activity) it is just displayed as a “textbox”.

Any insight on how to go about adding this kind of param would be really appreciated!

Thanks and BR,
Filip