You can delete documents from framework nodes and cells. You can choose to simply detach a document from the node or cell or completely remove it from the project.
Click a node or cell to open its floating list, select one or more documents in the list, and then click the Delete tool.
Alternatively, select one or more documents in a node or cell and press the Del key or right-click a document and select Edit > Delete.
The Confirm Deletion dialog box is displayed.
Choose one of the following delete options:
Detach the document from the node or cell - the document is detached from the node or cell but remains available in the project to be used elsewhere.
Remove the document and any supporting file or model from the project - their deletion from the project may affect files or models used elsewhere in the project.
Click OK to close the dialog box and confirm the deletion.