You can flag containers as a certain type and then use those types to limit what assets a specific artist can see using Views.

你可以标记容器节点为某一种特定的类型而使得资源节点与众不同，从而让艺术家在视图中能轻易的识别出来。

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Belfast councillors voted on 3 December to limit the days the union flag flies over Belfast City Hall.

BBC: Northern Ireland

Alliance, Sinn Fein and SDLP councillors voted to limit the flying of the flag while the DUP and Ulster Unionists opposed the move.

BBC: SDLP councillor Claire Hanna's home attacked

It follows a decision by Belfast City Council to limit the number of days the flag is flown at the City Hall.

BBC: NI Secretary of State Theresa Villiers