[Qgis-user] Lizmap - Filter data with form

[Riccardo D'Alvito]

Good morning.
In these days I'm writing a lot because I'm doing a very important project for me in which I'm experiencing some problems with the use of LizMap. I thank, therefore, all those who have already answered and will answer me.
In this case, more than a problem it's an advice that I ask to you that are much more experienced than me in this field and have a wider overview.

I had the need to represent three types of interventions (point, linear and areal) for this I created a GeoPackage database in which I inserted the three layers with geometry respectively multipoint, multiline and multipolygon. All these three layers have the same fields in the attribute table, only the information of each element changes (some fields are for example the year of the intervention, the type of funding, the type of intervention etc.); moreover each layer has a different number of elements according to how many interventions could be represented by points, how many by lines and how many by polygons.
I then set up the project with LizMap and it shows up correctly online.
I now need to create a filter through which it is possible to see the interventions with certain characteristics and not others. For this reason I have seen the function "Filter data with form" of LizMap that allows, for the same layer, to filter the data leaving in view those of interest and making disappear from view those not searched. The problem is that this can be done for the three layers separately, it can't be done for all three at once (obviously, I should say!).
I also created a group in which I put the three layers but (again, obviously!) I can't do the search for the three layers together but only separately.
The question is if there is a way for me to do the search on all three layers (of different geometries and with the same fields of the attribute table) at the same time or if I am forced to select each layer separately and set the same search only on it.

I hope I have been clear.

Thank you very much.
Have a nice day,

Riccardo
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