diff --git a/config_panel.toml b/config_panel.toml
index 8deb05e..2c01e67 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -7,19 +7,24 @@ name = "Castopod configuration"
     name = "PHP-FPM configuration"
 
         [main.php_fpm_config.fpm_footprint]
-        ask = "Memory footprint of the service?"
-        choices = ["low", "medium", "high", "specific"]
+        ask = "Memory footprint"
+        type = "select"
+        choices.low = "Low, <= 20Mb per pool"
+        choices.medium = "Medium, between 20Mb and 40Mb per pool"
+        choices.high = "High, > 40Mb per pool"
+        choices.specific = "Use specific value"
         default = "low"
-        help = "low <= 20Mb per pool. medium between 20Mb and 40Mb per pool. high > 40Mb per pool.<br>Use specific to set a value with the following option."
 
-        [main.php_fpm_config.free_footprint]
+        [main.php_fpm_config.fpm_free_footprint]
+        visible = "fpm_footprint == 'specific'"
         ask = "Memory footprint of the service?"
         type = "number"
         default = "0"
         help = "Free field to specify exactly the footprint in Mb if you don't want to use one of the three previous values."
 
         [main.php_fpm_config.fpm_usage]
-        ask = "Expected usage of the service?"
+        ask = "Expected usage"
+        type = "select"
         choices = ["low", "medium", "high"]
         default = "low"
         help = "low: Personal usage, behind the SSO. No RAM footprint when not used, but the impact on the processor can be high if many users are using the service.<br>medium: Low usage, few people or/and publicly accessible. Low RAM footprint, medium processor footprint when used.<br>high: High usage, frequently visited website. High RAM footprint, but lower on processor usage and quickly responding."
diff --git a/scripts/install b/scripts/install
index c4bb857..d72895d 100755
--- a/scripts/install
+++ b/scripts/install
@@ -30,10 +30,13 @@ is_public=$YNH_APP_ARG_IS_PUBLIC
 admin=$YNH_APP_ARG_ADMIN
 password="$YNH_APP_ARG_PASSWORD"
 email=$(ynh_user_get_info --username=$admin --key=mail)
-phpversion=$YNH_PHP_VERSION
 
 app=$YNH_APP_INSTANCE_NAME
 
+fpm_footprint="low"
+fpm_free_footprint=0
+fpm_usage="low"
+
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
@@ -54,6 +57,9 @@ ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
 ynh_app_setting_set --app=$app --key=admin --value=$admin
 ynh_app_setting_set --app=$app --key=password --value="$password"
+ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
+ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
+ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
 
 #=================================================
 # INSTALL DEPENDENCIES
@@ -99,7 +105,8 @@ chown -R $app:www-data "$final_path"
 ynh_script_progression --message="Configuring PHP-FPM..." --weight=1
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=low --footprint=low
+ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # NGINX CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 40ccb9a..7b81dd2 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -25,6 +25,7 @@ redis_db=$(ynh_app_setting_get --app=$app --key=redis_db)
 phpversion=$YNH_PHP_VERSION
 
 fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
+fpm_free_footprint=$(ynh_app_setting_get --app=$app --key=fpm_free_footprint)
 fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
 
 #=================================================
@@ -66,14 +67,20 @@ fi
 
 # If fpm_footprint doesn't exist, create it
 if [ -z "$fpm_footprint" ]; then
-	fpm_footprint=low
-	ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
+    fpm_footprint=low
+    ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
+fi
+
+# If fpm_free_footprint doesn't exist, create it
+if [ -z "$fpm_free_footprint" ]; then
+    fpm_free_footprint=0
+    ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
 fi
 
 # If fpm_usage doesn't exist, create it
 if [ -z "$fpm_usage" ]; then
-	fpm_usage=low
-	ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
+    fpm_usage=low
+    ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
 fi
 
 # Cleaning legacy permissions
@@ -133,6 +140,7 @@ ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
 
 # Create a dedicated PHP-FPM config
 ynh_add_fpm_config --phpversion=$phpversion --usage=$fpm_usage --footprint=$fpm_footprint
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # NGINX CONFIGURATION