Moving all merged layers at once using QGIS

Question

I am using QGIS 3.10.

Following the query at QGIS 3.10 problem with merging layers & multipart promotion I merged my layers into one piece. Now I would like to make them draggable across the map, as per my previous query at Moving layer across map canvas.

I spotted, that despite the all-in-one performance, the draggable tool still moves only one layer selected:

I want to have all of them moved at the same time.

Is it possible?

---

I tried to use the " Remove duplicate geometries" option, although the result is still the same:

A similar question has been asked as Moving two layers at once in QGIS but is not applied to the merged layers.

My attribute table looks as follows:

Answer 1

if you look at your attribute table, you will see if the two polygons were actually merged. if they are merged there will only be one feature, if not, you will see multiple features. If you want to move them all, select them all before using the move feature tool. If you actually want to merge them before moving, then select them all and use the merge selected featurestool.

Answer 2

It looks like I managed with it. Since our layers are merged, to make sure, that all of them are moved we must select from the main toolbar the "Select All features" option. Afterward, our merged polygons should appear as yellow. If this is so, you can use advanced digitalizing tools without a problem.