Hi Jan,

<<  One question: How to programmatically insert line breaks into
    a series of blocks? >>

That's a tricky one. If you use a layout in your code, the line hints are
preserved, but I haven't found a way to simulate them. If you're using
objects, you can MOLD them to make REBOL do the layout for you, but it
doesn't help with blocks.

>> o: make object! [a: 0 b: 1 c: [ca: 2 cb: 3]]
>> mold o
== {
make object! [
    a: 0
    b: 1
    c: [ca: 2 cb: 3]
]}
>> o: make object! [a: 0 b: 1 c: make object! [ca: 2 cb: 3]]
>> mold o
== {
make object! [
    a: 0
    b: 1
    c:
    make object! [
        ca: 2
        cb: 3
    ]
]}
>> third o
== [a: 0 b: 1 c:
    make object! [
        ca: 2
        cb: 3
    ]]

--Gregg

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