diff --git a/src/args.rs b/src/args.rs
index de04161..7a239a7 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -19,4 +19,8 @@ pub struct Args {
     /// By default pik shows only proceseses owned by current user. This flag allows to show all processes
     #[arg(short, long, default_value_t = false)]
     pub all_processes: bool,
+    #[arg(short = 'F', long, default_value_t = false)]
+    pub fullscreen: bool,
+    #[arg(short = 'H', long, default_value_t = 20)]
+    pub height: u16,
 }
diff --git a/src/main.rs b/src/main.rs
index 5096ec8..ce089e7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,5 +12,7 @@ fn main() -> Result<()> {
             ignore_threads: !args.include_threads_processes,
             include_all_processes: args.all_processes,
         },
+        args.height,
+        args.fullscreen,
     )
 }
diff --git a/src/tui.rs b/src/tui.rs
index 2e45633..ce5daf5 100644
--- a/src/tui.rs
+++ b/src/tui.rs
@@ -73,16 +73,20 @@ impl App {
     }
 }
 
-pub fn start_app(search_criteria: String, filter_options: FilterOptions) -> Result<()> {
+pub fn start_app(
+    search_criteria: String,
+    filter_options: FilterOptions,
+    viewport_height: u16,
+    viewport_fullscreen: bool,
+) -> Result<()> {
     // setup terminal
     enable_raw_mode()?;
     let backend = CrosstermBackend::new(io::stdout());
-    let mut terminal = Terminal::with_options(
-        backend,
-        TerminalOptions {
-            viewport: Viewport::Inline(20),
-        },
-    )?;
+    let viewport = match (viewport_height, viewport_fullscreen) {
+        (_, true) => Viewport::Fullscreen,
+        (h, false) => Viewport::Inline(h),
+    };
+    let mut terminal = Terminal::with_options(backend, TerminalOptions { viewport })?;
 
     // create app and run it
     let app = App::new(search_criteria, filter_options)?;