I would like a plugin or feature update to the main program allowing to add disk information from alternate sources such a IMDB or TheMovieDB when in "Add Disk by Title" For example ARQ (2016) ia not in the online database but all the information is in both IMDB and The MovieDB. When this happens [and it does all the time] I am forced to manually add titles by copy and pasting which is very tedious and provides limited information for my titles such as Runtime, year, synopsis and cover art. [I am not about to start copy/pasting cast and crew information.]

Let's for a moment put aside the issue of DVD Profiler's long term viability. To understand why the function you desire is not in the product, please read the contribution rules. Very briefly, they prohibit the copying of data from other sources without explicit verification by actually watching the movie and / or the credits as displayed in the movie. There are rules about what can be copied from the DVD container, and in some cases, from which side of the container.

That being the case, of course you can put into DVD Profiler whatever you want. You just are not allowed to contribute data that has not been gathered and validated per the rules.

See the "plugins" being offered. Some of them include ways to import other databases (may be obsolete) or derive cast and crew information from IMDB.

This community has always attempted to respect the rules and Copyrights of DVD Profiler and any other programs that we use. My words have not been an attempt to preach; rather to help you understand the context of the limitations that you have noted in your post.