I am new to blender and need some help!

I open a landscape from Add…then Mesh…then landscape…then I move the mountain to the center of the grid…after that I can no longer access any landscape tools to make adjustments to the mountain…they are greyed out or disappear…what am I doing wrong…

I would appreciate any help…thank you…Richard

The operator panel shows settings for the previous operator. You moved it, which is another operator, and it shows the options for that one. For it to show the options, you would have to call the same operator again. It does remember the settings so that is one option.

The landscape option is an addon. Some addons provide properties for objects outside the operator panel. ANT Landscape has those on the 3d view properties.

https://www.youtube.com/playlist?list=PL0AfIdK08E7_PKsXOO_yuAql9b3hdcwPR

I also suggest using punctuation marks, they work great and makes sentences easier to split when quoting in a reply.

Once you accept the settings of the Add / Landscape you can’t go back and make further changes