RefTeX can be configured to recognize additional labeled
environments and macros. This is done with the variable
reftex-label-alist
(see Defining Label Environments). If you are not familiar with Lisp, you can use the
custom
library to configure this rather complex variable. To do
this, use
M-x customize-variable RET reftex-label-alist RET
Here we will discuss a few examples, in order to make things clearer.
It can also be instructive to look at the constant
reftex-label-alist-builtin
which contains the entries for
all the builtin environments and macros (see Builtin Label Environments).