I couldn't find existing command to do it.
I tried with Lua Script

T = require'TextEditor'
local U = require 'Utils'
local A = require 'Action'
local Q = require 'Qt'
local editor = T.currentEditor()
if editor then
    local doc = editor:document()
    local filepath = doc:file()
    local fileName = filepath:fileName()
    local ext = string.sub(fileName,-3)
    local name = string.sub(fileName,1,-5)
    if ext == "qml" then
        Q.clipboard().text = name
        A.trigger("Find.Dialog")
    end
end

But ... there's no action to trigger search and jump to results. I can ONLY open search pane and manually paste filename.

Are there other solutions that I'm missing?

Ctrl+Shift+U on component Tom in any place of its usage shows all places of its usage. It could be extended to work from within Qml file.

https://www.qt.io/blog/qt-creator-19.0.2-released

https://www.qt.io/blog/qt-creator-20-beta-released

https://www.qt.io/blog/qt-creator-19.0.1-released

If I enable "Sign package" In Build Settings-Build Steps-Build Android APK then the build fails as shown below. I am suspicious of the fact that the failure is reported before the verification finishes.

How can I either fix this, or work around the issue?

...
33673095 lib/arm64-v8a/libqml_QtQuick_Controls_FluentWinUI3_qtquickcontrols2fluentwinui3styleplugin_arm64-v8a.so (OK - compressed)
34717866 lib/arm64-v8a/libqml_QtQuick_Controls_Fusion_impl_qtquickcontrols2fusionstyleimplplugin_arm64-v8a.so (OK - compressed)
34722594 lib/arm64-v8a/libqml_QtQuick_Controls_Fusion_qtquickcontrols2fusionstyleplugin_arm64-v8a.so (OK - compressed)
34727689 lib/arm64-v8a/libqml_QtQuick_Controls_Imagine_impl_qtquickcontrols2imaginestyleimplplugin_arm64-v8a.so (OK - compressed)
34732410 lib/arm64-v8a/libqml_QtQuick_Controls_Imagine_qtquickcontrols2imaginestyleplugin_arm64-v8a.so (OK - compressed)
Missing input APK
apksigner command failed.
34737514 lib/arm64-v8a/libqml_QtQuick_Controls_Material_impl_qtquickcontrols2materialstyleimplplugin_arm64-v8a.so (OK - compressed)
34742239 lib/arm64-v8a/libqml_QtQuick_Controls_Material_qtquickcontrols2materialstyleplugin_arm64-v8a.so (OK - compressed)
34747394 lib/arm64-v8a/libqml_QtQuick_Controls_Universal_impl_qtquickcontrols2universalstyleimplplugin_arm64-v8a.so (OK - compressed)
34752137 lib/arm64-v8a/libqml_QtQuick_Controls_Universal_qtquickcontrols2universalstyleplugin_arm64-v8a.so (OK - compressed)
34757265 lib/arm64-v8a/libqml_QtQuick_Controls_impl_qtquickcontrols2implplugin_arm64-v8a.so (OK - compressed)
34762025 lib/arm64-v8a/libqml_QtQuick_Controls_qtquickcontrols2plugin_arm64-v8a.so (OK - compressed)
34773017 lib/arm64-v8a/libqml_QtQuick_Dialogs_qtquickdialogsplugin_arm64-v8a.so (OK - compressed)
34777762 lib/arm64-v8a/libqml_QtQuick_Dialogs_quickimpl_qtquickdialogs2quickimplplugin_arm64-v8a.so (OK - compressed)
34782511 lib/arm64-v8a/libqml_QtQuick_Effects_effectsplugin_arm64-v8a.so (OK - compressed)
34787223 lib/arm64-v8a/libqml_QtQuick_Layouts_qquicklayoutsplugin_arm64-v8a.so (OK - compressed)
34791942 lib/arm64-v8a/libqml_QtQuick_Shapes_qmlshapesplugin_arm64-v8a.so (OK - compressed)
34796736 lib/arm64-v8a/libqml_QtQuick_Templates_qtquicktemplates2plugin_arm64-v8a.so (OK - compressed)
34801748 lib/arm64-v8a/libqml_QtQuick_Window_quickwindowplugin_arm64-v8a.so (OK - compressed)
34806997 lib/arm64-v8a/libqml_QtQuick_qtquick2plugin_arm64-v8a.so (OK - compressed)
34811779 lib/arm64-v8a/libqml_QtWebView_qtwebviewquickplugin_arm64-v8a.so (OK - compressed)
34816513 lib/arm64-v8a/libqml_Qt_labs_folderlistmodel_qmlfolderlistmodelplugin_arm64-v8a.so (OK - compressed)
34821200 lib/arm64-v8a/libqml_Qt_labs_platform_labsplatformplugin_arm64-v8a.so (OK - compressed)
34825855 lib/arm64-v8a/libqml_Qt_labs_settings_qmlsettingsplugin_arm64-v8a.so (OK - compressed)
34830467 lib/arm64-v8a/libssl_3.so (OK - compressed)
35074415 lib/arm64-v8a/libswresample.so (OK - compressed)
35116529 lib/arm64-v8a/libswscale.so (OK - compressed)
35399300 assets/android_rcc_bundle.rcc (OK)
35415361 AndroidManifest.xml (OK - compressed)
35417768 res/2H.png (OK)
35418788 res/8p.png (OK)
35421245 res/Dt.xml (OK - compressed)
35421484 res/yj.png (OK)
35423100 resources.arsc (OK)
Verification succesful
APK already aligned, copying it for signing.
12:00:38: The command "C:\Qt\6.8.3\mingw_64\bin\androiddeployqt.exe --input path/to/Qt_6_8_3_for_Android_arm64_v8a-Release/android-ErgRace-deployment-settings.json --output path/to/Qt_6_8_3_for_Android_arm64_v8a-Release/android-build-MyApp --android-platform android-34 --jdk "C:/Program Files/Eclipse Adoptium/jdk-17.0.14.7-hotspot" --verbose --gradle --release --sign path/to/my.keystore myalias --storepass "****" --no-gdbserver" terminated with exit code 15.

Application
    |-- [ ] Plugin1
    |-- [ ] Plugin2
[ ] Matlab Runtime Environment 2023b

Note that both Plugins are not selected, neither is the Matlab component (in the real case, I will have some selected by default). The Matlab component should only be considered when the Matlab Runtime Environment is not yet installed (which can be done independently of my application of course). One can check for a specific key in de registry to know whether the Matlab Runtime Environment is already installed or not. The actual installation can be done by adding some operations in an installscript.qs for the Matlab component. I do have a data.7z in the data directory of the Matlab component that contains what you can download from Mathworks.

I do not find it necessary that the selection of the Matlab component is updated in the tree view when a user selects a plugin that requires it although that would be nice, but then it should not be possible to unselect it as long as a plugin requiring it is selected (and it could be unselected in case there are no plugins anymore selected requiring it). But of course, when the installation summary is shown and when the installation starts, it should be checked whether any plugin is selected that requires the Matlab Runtime Environment and install it via the Matlab component if that is not the case.

I do want to have the possibility of (un)selecting the Matlab component, but only in case the specific key does not yet exist in the registry (in the real case, I will have some of the plugins and the Matlab component selected by default). However, if the key does exist, the installer should completely ignore the Matlab component! That means, that it should not download anything (it's 4.2GB!) nor perform any operations to install it. It also means that the user must not be able to (un-)select the Matlab component upon updating or uninstalling when the key in the registry exists (i.e., in such case the Matlab component should be hidden from the tree view). The user should also never be able to uninstall the Matlab Runtime Environment via my installer. During updating, the behavior should be the same as during installation.

A long story, but I hope that it is clear what I am trying to achieve. One of the main problems that I am struggling with to solve is that when the Matlab Runtime Environment is already installed (via the normal way, i.e., without using my installer), my installer still starts downloading the 4.2GB file and subsequently doesn't do anything with it. So, the first question that I have is: how can I specify that the Matlab component must be completely ignored when the key in the registry exists such that nothing happens regarding that component, even if plugins are selected that depend on it?

BTW.: Some of the plugins are also depending on a Python Environment and several 3rd Party Tools for which a similar story can be told (while the check on whether these are already installed is just checking the existence of a certain directory).