Yes, this may be a misunderstanding of joomla logic (don't worry, i had the same question years ago, when first steps with joomla
)
In fact, component are creating pages, exactly as articles. So you can have to component in the same page.
About modules, you can have as many as you want on one page.
But, it's possible to insert an article in a module position, which can be display on the page of iCagenda component. You need a specific extension to do that, and many does this job on the JED :
extensions.joomla.org/extensions/news-di...isplay/content-embed
This way, on one page to events list, you can publish 2 modules (one calendar, and one article)
This mean to edit your site template to maybe create a module position that can display article module in the way you want...
About a component (iCagenda) in a module position, maybe this extension could do the job, but i'm really not sure it can...
extensions.joomla.org/extensions/core-en...mbed-a-include/21157
But, with Pro version, you have a extra module with iCagenda : Event List.
This module able you to have a selected list of events (but not all, only a selected number) in a module position.
Many things are possible, but it means to have a site template well constructed for this!
Maybe, the best way for you, is to have an article in module position, but without a specific picture to show on all pages, which logic you want, difficult to answer you.
An other point, the developper of your site template is the best personn to answer you about this, as he knows the code of his template, and can tell you what is possible or not
