Insert Plugin to Sidebar (not widget)

I’ve been downloading plugins to be put into the sidebar but apparently almost all of them don’t have the code to be put on other part of the sidebar which are not widget..

i know this sounds confusing but what i’m trying to say is i’m not using the widget template provided by WP but instead i’m using the template provided by myy current themes, which allows to add anything i want.

and since most plugins go straight to widget i’m not sure what code to use to put it in the other part of myy sidebar.. for example, i successfully installed the wp-cumulus and put it the sidebar cause they provided me with the code <?php wp_cumulus_insert() ;?> or something like that..

now is there any specific code that i can use to embed all the plugins i’ve installed without them telling me particular code?

thank you