Is your feature request related to a problem? Please describe.
Currently, when griddy's container items are moved through the Item Piles module, the items contained in them remain in the original actor, and it should be necessary to be able to transfer the contents of the container items when they are transferred.
目前griddy模组的容器物品在通过Item Piles模组移动时，其中包含的物品仍会留在原actor中，应该需要能够在容器物品发生转移时其中的内容物跟随转移。
Describe the solution you'd like
I tried to implement it through the Hook and API provided by Item Piles, but the bugs caused are beyond my ability. I hope to have native support.
我尝试通过Item Piles提供的Hook和API去实现，但引发的BUG超出了我的能力范围，希望能有原生支持。
Describe alternatives you've considered
Provides an API that allows additional items to be appended to the transfer when any Item is transferred via the Item Piles any function.
提供一个API接口，当任意通过Item Piles的功能进行物品转移时，允许追加其他物品跟随转移。
Is your feature request related to a problem? Please describe. Currently, when griddy's container items are moved through the Item Piles module, the items contained in them remain in the original actor, and it should be necessary to be able to transfer the contents of the container items when they are transferred. 目前griddy模组的容器物品在通过Item Piles模组移动时，其中包含的物品仍会留在原actor中，应该需要能够在容器物品发生转移时其中的内容物跟随转移。
Describe the solution you'd like I tried to implement it through the Hook and API provided by Item Piles, but the bugs caused are beyond my ability. I hope to have native support. 我尝试通过Item Piles提供的Hook和API去实现，但引发的BUG超出了我的能力范围，希望能有原生支持。
Describe alternatives you've considered Provides an API that allows additional items to be appended to the transfer when any Item is transferred via the Item Piles any function. 提供一个API接口，当任意通过Item Piles的功能进行物品转移时，允许追加其他物品跟随转移。
Additional context