(without losing synchro in the following edits)
This is not a straightforward process when the number of tracks of your project is different from the the number of tracks of the clip you want to insert.
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Save your project.
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Arm only the tracks you want to be affected.
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Splice the clip from the viewer. Synchro will be lost.
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On the timeline, select between in/out points the just spliced edit.
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Arm only the tracks not affected by the splice.
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Edit→Paste silence. Synchro will be restored.
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Make sure the paste silence operation moved effects too.