How to easily search courses in Market Place?

I use panels a lot in DK, now it appears you have limited what we can add to a panel's placeholder. Is there a way to add a button into a panel like we could in the previous version?  

Is there any way to lock the header section in a vertical scrolling project so that it stays fixed in place at the top of the screen whilst the rest of the screen is scrolled?  

I simply need to find specific vado courses and upload Spanish translation scripts. I don't know where to start. Thank you

I have three courses where I am trying to apply the same theme to all three.    In two of my courses, I have four themes listed, which is perfect. I can select the theme I want.    In the third course, only one theme is listed, and it's not the theme I want. How do I get the theme that is applied to courses A and B to also apply to C? All three courses are Flow courses.  

Want to know if there is a library that i can look at examples of projects that have been created in domiknow to get a full understanding of what we can truly do with power of dominknow.    thanks   

Just the character in text ... do I use an HTML variable? Thanks.  

I have created several hotspots with actions over images that work fine in desktop view, but drift off target when viewed in mobile. How do I keep hotspots in place? Thanks for your help.