Worksheets - the ability to select multiple objects via the worksheet

[yasin2ray]

Worksheets:

• Add the ability to select multiple objects from a worksheet, not just a single object from a single row. 
• I would use this in a “data editing/review/quality control” worksheet to select multiple objects for changing one setting at once for all the objects. One example, to select all Ash trees so that I can mark them as To Be Removed. (I realize there are other ways to select multiple things, such as the custom selection tool, but the worksheet is where I do a lot of review of the project).