Using Concrete 5.5.2.
I've been playing around with the Site Name and find it confusing.
I'm looking for the right thing to do.. I'm using the Template - Plain Yogurt. Now I'm not sure if the issue is specifically with this theme. By the way - "I GET STACKS!!"

1) There is a Site Name defined in the Dashboard under "Basics in the "System and Settings" - If I change it, the changes are reflected at the top Page Name and in the "Footer". It appears only to be a "Text" field.

2) There is a "Global Area" element called "Site Name" identified in the "Stacks & Blocks" - If I change this the page and footer do not change. I cannot see where this is used or reference - and maybe it is not (or is used only programmatically. I tried to add a block and I do not see the "Global Area" Site Name to select from.

3) I've also created in "Other Stack" my own element called "My Site Name" and this I can add to when I create a new block - I'm ok with this as it would represent the old scrapbook I'm used too.

So the issue like others ... I want to either remove the site name from the top altogether or replace with a logo or a defined text line. I do not want to lose the "site name" in the footer.

My initial work around (old versions) was to blank out the site name in the System Settings "Basic" (Eliminates the top page Site Name) and hard code the site name in the footer - copyright entry.

Am I missing something as to how to replace the Top "My Site Name".
Is it syntax as the block in the header.php is defined as $block = Block::getByName('My_Site_Name'); should I be naming the variable My_Site_Name with underscores. Or something else - I've cleared Cache, do I need to reapply the page or something??

Is the issue the Global Area is defined as "Site Name" and Plain Yogurt is using a Block called My_Site_Name. Should I change block to stacks?? or just change the variable to Site Name in the header.php

Help Direction much apprecaited.