Instead of having elaborate schemes of using CRAY or DRAY to erase elements can we please have a deliberate element to do this with.

I suggest ERAY as Erase Ray

It should have the same INWR rule as DRAY (no diagonals)

TMP is how many pixels to erase in a straight line.

TMP2 is how many pixels to skip before erasing.

deletes all elements.

That simple.  totally non selective.  just an eraser.

That does not delete FILT or DMND.  Also being completely indescriminate has some advantages.  I mean a REAL eraser.  that CRAY scheme is exactly what I meant in my first post.  it is less than ideal for many purposes.  It can be done with DRAY if you want to dedicate a large chunck of empty space to be an eraser, again less than ideal.  There is no need to keep erasing as an arcane science.  A good ingame method could allow for many new simulation and animations.  My selfish reason is for my printer tech.  Oh and maybe typewriter.  I am sure electronics and I bet subframe guys will exploit it.  With the ability to create and copy most anything most anywhere, I think being able to delete the same way will fit well.