How to remove redundant curves after Boolean Union?

Hi,
V5

attached an example, I have unioned the upright to the base, there are now curves that were for the upright no longer required. arrowed.

I also do a test piece in grey, again arrowed need removing

If I filletEdge ChainEdges it still wants to fillet those redundant bits ! I have many to do so doing it bit by bit is a pain and time consuming.

How does one clean up a unioned item removing redundant parts, curves etc ?
unioned lug clean up redundant curves.3dm (236.7 KB)

Steve

Try MergeAllCoplanarFaces

Hi,
unknown Command, perhaps v5 hasnt that.
However I then try MergeAllFaces and they are gone .

Thanks
Steve

rhino 7

_MergeAllCoplanarFaces

rhino 5

_mergeallfaces

https://docs.mcneel.com/rhino/5/help/en-us/index.htm#commands/mergeallfaces.htm?Highlight=merge

workarround

ctrl + shift click to select faces
delete
_cap

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