Hi,
The CA customization of Liferay are mostly .jsp files under the OSOP\tomcat-7.0.40\webapps\openspace-portlet\html\portlet\ folder
Services from catalog are show in USS using the widget so you will need to customize this in catalog then for at less your item 2.
For item 1 you must be able to reproduce how CA did to display those initial 3.
Your starting point will be in the view.jsp under the OSOP\tomcat-7.0.40\webapps\openspace-portlet\html\portlet\navigationTiles folder but be ready as this can be a long road and like any customizations, you are on your own with no official CA support.
Not sure you wan to follow this path but hope this help anyway.
/J