wolfram mathematica - How to delete unnecessary options from Notebook[]? -

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by default notebook[] has small set of options:

in[4]:= options[evaluationnotebook[]]  out[4]= {frontendversion ->    "7.0 microsoft windows (32-bit) (february 18, 2009)",   styledefinitions -> "default.nb",   windowmargins -> {{0, automatic}, {automatic, 0}},   windowsize -> {616, 537}}

sometimes wish modify notebook appearance , set additional options. example have comments plain rather bold:

setoptions[evaluationnotebook[],   autostyleoptions -> {"commentstyle" -> {fontweight -> plain,       fontcolor -> graylevel[0.6`], showautostyles -> false,       showsyntaxstyles -> false, autonumberformatting -> false}}]

now options[evaluationnotebook[]] return new option have set.

but wish restore default behavior , delete additional options. how can that?

igor's answer right. remove options set by

setoptions[evaluationnotebook[],   autostyleoptions -> {"commentstyle" -> {fontweight -> plain,       fontcolor -> graylevel[0.6`], showautostyles -> false,       showsyntaxstyles -> false, autonumberformatting -> false}}]

you need run

setoptions[evaluationnotebook[],   autostyleoptions -> {"commentstyle" -> inherited}]

but works options standard , have default inherit (if it's cell enclosing section or notebook, if it's notebook stylesheet). if make own option, e.g.

protect[hiddendata]; setoptions[evaluationnotebook[], hiddendata -> {"here's string"}]

i don't know how programmatically remove option.

edit:

actually, remove hiddendata option created above, can use like

notebookput[deletecases[notebookget[evaluationnotebook[]],                          $cellcontext`hiddendata -> _],              evaluationnotebook[]]

edit 2:

mr wizard asked how remove user-set notebook options. assuming means options can't inherited, believe following should work:

notebookput[  with[{nb = notebookget[evaluationnotebook[]], opts = options[notebook][[all, 1]]},    prepend[select[rest@nb, memberq[opts, first[#]] &], first@nb]],   evaluationnotebook[]]

but maybe there options associated stylesheet i've ignored...

if meant how system's default notebook options - can delete notebook options:

notebookput[notebook[first@notebookget[evaluationnotebook[]]],              evaluationnotebook[]]

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