Quando o menu bar some: menubar <enter> 1 <enter>
Quando a área de prompt some: Ctrl + 9
Para alternar entre viewports: Ctrl + R
Para ligar e desligar seleção cíclica: Ctrl + W
alternar as barras de ferramenta: Ctrl + 0
Pra mostrar a Ribbon: ribbon <enter>
snapang: 0 (zero) ou outro número para mudar o ângulo do ortho
expressmenu – pra carregar o menu express
definir os osnaps: tools – drafting – settings
tamanho do cursor: tools – options – draftings
display plot style no paper: botão da direita na tab do layout –
show lineweight: format – lineweight – | x | display lineweight
local das plot styles – file > plot style manager
2009 – C:\Documents and Settings\user\dados de aplicativos\autodesk\autocad xxxx\r xx.x\enu\plot styles
2014 – C:\Users\xxx\AppData\Roaming\Autodesk\AutoCAD 2014\R19.1\enu\Plotters\Plot Styles
local de drivers de ploters – file > plotter manager
tools > options > file
+ Printer supportf file path
__ + Printer configuration search path
2009 – C:\Documents and Settings\user\dados de aplicativos\autodesk\autocad xxxx\r xx.x\enu\plotters
2014 – C:\Users\xxx\AppData\Roaming\Autodesk\AutoCAD 2014\R19.1\enu\Plotters
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template: tools > options > files > template settings > default template file name for QNEW
rollover tooltip: tools > options > display | x | show rollover tooltip
highlight objects: tools > options > selection
selection polygon: wp (window polygon)
multiple: repete o comando até o ESC
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xref > bind > bind
bind – as layers do xref ficam com o nome do xref na frente (recomendado)
insert – as layers do xref viram layers do desenho (as vezes bagunça,descongela layers)
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para fazer um botão que cria layer:
-la;n;aq-blablabla;c;1;aq-blablabla;lt;hidden;aq-blablabla;
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visretain – mantem a configuração das layers do desenho inserido por xref
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variáveis
filedia -0/1 – liga e desliga caixas de diálogos
grips – 0/1 – liga e desliga grips
dimassoc:
0 – cria cotas explodidas
1 – cria cotas não associadas com os objetos cotados
2 – cria cotas associadas aos objetos cotados
pickadd:
0 (zero) – cada seleção de objeto substitui a anterior
1 – cada seleção de objeto é adicionada a seleção anterior
pickauto – 0 não aceita janela, só seleção individual / 1 – aceita janela de seleção
pickfirst – 0 – não aceita pré-seleção
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Opção Display action bars :: blocos dinâmicos
Para escolher entre
ou 
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Linetypes
acadiso.lin – unidades métricas (metros)
acad.lin – unidades britânicas (polegadas)
Fonte: help.autodesk