The Install command replaces the current context menu module, ContextMenu[CurrentContext], with a specified context menu module.  After this command is executed, the new context menu module is accessible as ContextMenu[CurrentContext], and is used by Maple to generate the contents of context-sensitive menus.

The CM parameter specifies the context menu module to install. If CM is not specified, the Maple default context-sensitive menu system is installed.

For information on creating or extending context menu modules in Maple, see About Creating Context-Sensitive Menus.

with(ContextMenu):

Replace the current context menu with a new context menu.

newCM := New():

newCM[Entries][Add]("Multiply by 2", "2*%EXPR", numeric);

$0$

newCM[Queries][Add]("Divisible by 2", proc(p) evalb(p mod 2 = 0) end proc);

newCM[Entries][Add]("Divide by 2", "%EXPR/2", algebraic, 'test'="Divisible by 2");

$3$

Install(newCM);

Revert to the Maple default context menu system.

Install();

Add several additional entries to the default context menu system.

newCM := CurrentContext[Copy]():

newCM[Entries][Add]("Multiply by 2", "2*%EXPR", numeric);

$463$

newCM[Queries][Add]("Divisible by 2", proc(p) evalb(p mod 2 = 0) end proc);

newCM[Entries][Add]("Divide by 2", "%EXPR/2", algebraic, 'test'="Divisible by 2");

$734$

Install(newCM);